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MATH COMPUTATION SKILLS & STRATEGIES Every book in the Math Computati...

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Saddleback Math Covers

10/22/06

6:24 PM

Page 1

MATH COMPUTATION SKILLS & STRATEGIES Every book in the Math Computation Skills and Strategies series contains over 100 reproducible pages.These highinterest activities combine computation practice with strategy instruction. Featuring a Scope and Sequence chart, the books allow educators to supplement their math lessons with the extra math practice all students need. In addition, periodic reviews allow for reinforcement and assessment of skills.

H I G H - I N T E R E S T M AT H C O M P U TAT I O N S K I L L S & S T R AT E G I E S

HIGH-INTEREST

• LEVEL 3

The books are grade specific, but they were created with students of all ages in mind. Each book features ready-to-use pages with instructional tips at the beginning of each lesson. Math Computation Skills and Strategies reproducible books are the perfect choice for educators.

HIGH-INTEREST

MATH COMPUTATION SKILLS & STRATEGIES Operations Fractions and Decimals Whole Numbers Perimeter and Area Regrouping

Three Watson • Irvine, CA 92618-2767 • 888-SDL-BACK • www.sdlback.com

S A D D L E B A C K E D U C AT I O N A L P U B L I S H I N G

Saddleback E-Book

Solving Word Problems Money Measurement

LEVEL

3

100 plus+ REPRODUCIBLE ACTIVITIES

MATH COMPUTATION SKILLS & STRATEGIES

LEVEL

3

ISBN 1-56254-966-9 Copyright © 2006 by Saddleback Educational Publishing. All rights reserved. No part of this book may be reproduced in any form or by any means, electronic or mechanical, including photocopying, recording, or by any information storage and retrieval system without written permission of the publisher, with the following exception. Pages labeled Saddleback Educational Publishing ©2006 are intended for reproduction. Saddleback Educational Publishing grants to individual purchasers of this book the right to make sufficient copies of reproducible pages for use by all students of a single teacher.This permission is limited to an individual teacher and does not apply to entire schools or school systems. Printed in the United States of America

Table of Contents Page

Lesson

5 . . . . . . . . . Introduction Unit 1 . . . Numbers and Number Sense 6 . . . . . . . . . Write Whole Numbers 7 . . . . . . . . . Understand Place Value 8 . . . . . . . . . Read Forms of Numbers 9 . . . . . . . . . Order and Compare Whole Numbers 10 . . . . . . . . Round Numbers to the Nearest Ten 11 . . . . . . . . Round Numbers 12 . . . . . . . . Whole Number Practice 13 . . . . . . . . Recognize and Name Fractions 14 . . . . . . . . Compare Fractions 15 . . . . . . . . Use Fractions Describing Part of a Group 16 . . . . . . . . Compare Fractions 17 . . . . . . . . Understand Decimals 18 . . . . . . . . Write Decimals 19 . . . . . . . . Compare Decimals and Fractions 20 . . . . . . . . Fraction Practice 21 . . . . . . . . Review Number Sense 22 . . . . . . . . Review Number Sense Unit 2 . . . Addition and Subtraction 23 . . . . . . . . Understand Addition 24 . . . . . . . . Understand Properties of Addition 25 . . . . . . . . Add Fast Facts 26 . . . . . . . . Practice Addition 27 . . . . . . . . Practice Addition 28 . . . . . . . . Add Numbers to 2 Digits 29 . . . . . . . . Add Numbers to 3 Digits 30 . . . . . . . . Add Numbers to 3 Digits 31 . . . . . . . . Add Numbers to 4 Digits 32 . . . . . . . . Add Numbers to 4 Digits 33 . . . . . . . . Add Numbers to 4 Digits 34 . . . . . . . . Practice Mixed Addition 35 . . . . . . . . Practice Mixed Addition 36 . . . . . . . . Understand Subtraction 37 . . . . . . . . Subtract Fast Facts 38 . . . . . . . . Practice Subtraction 39 . . . . . . . . Practice Subtraction 40 . . . . . . . . Recognize Fact Families 41 . . . . . . . . Check Addition and Subtraction 42 . . . . . . . . Subtract Numbers to 2 Digits 43 . . . . . . . . Subtract Numbers to 3 Digits 44 . . . . . . . . Subtract Numbers to 3 Digits 45 . . . . . . . . Subtract Numbers to 4 Digits 46 . . . . . . . . Subtract Numbers to 4 Digits 47 . . . . . . . . Subtract Numbers to 4 Digits 48 . . . . . . . . Practice Mixed Subtraction 49 . . . . . . . . Practice Mixed Subtraction

50 51 52 53 54 55 56 57 58 59 60 61 62 63 64

. . . . . . . . Add Three Numbers . . . . . . . . Solve Word Problems . . . . . . . . Solve Word Problems . . . . . . . . Review Addition and Subtraction . . . . . . . . Review Addition and Subtraction . . . . . . . . Find Equivalent Fractions . . . . . . . . Reduce Fractions . . . . . . . . Add Fractions . . . . . . . . Add Fractions . . . . . . . . Subtract Fractions . . . . . . . . Subtract Fractions . . . . . . . . Solve Word Problems . . . . . . . . Solve Word Problems . . . . . . . . Review Fractions . . . . . . . . Review Fraction

Unit 3 . . . .Multiplication and Division 65 . . . . . . . . Understand Multiplication 66 . . . . . . . . Multiply by 0 and 1 67 . . . . . . . . Multiply Fast Facts 68 . . . . . . . . Multiply Fast Facts 69 . . . . . . . . Multiply by 2, 5, and 10 70 . . . . . . . . Multiply 1-Digit Numbers 71 . . . . . . . . Understand Properties of Multiplication 72 . . . . . . . . Multiply 2 Digits by 1 Digit 73 . . . . . . . . Multiply 2 Digits by 1 Digit 74 . . . . . . . . Multiply 3 Digits by 1 Digit 75 . . . . . . . . Multiply 3 Digits by 1 Digit 76 . . . . . . . . Multiply 4 Digits by 1 Digit 77 . . . . . . . . Multiply 4 Digits by 1 Digit 78 . . . . . . . . Practice Multiplication 79 . . . . . . . . Practice Multiplication 80 . . . . . . . . Understand Division 81 . . . . . . . . Divide Fast Facts 82 . . . . . . . . Divide Fast Facts 83 . . . . . . . . Divide by 2, 5, and 10 84 . . . . . . . . Check Multiplication and Division 85 . . . . . . . . Divide 2 Digits by 1 Digit 86 . . . . . . . . Divide 2 Digits by 1 Digit 87 . . . . . . . . Divide 3 Digits by 1 Digit 88 . . . . . . . . Divide 3 Digits by 1 Digit 89 . . . . . . . . Divide 4 Digits by 1 Digit 90 . . . . . . . . Divide 4 Digits by 1 Digit 91 . . . . . . . . Practice Mixed Division 92 . . . . . . . . Practice Mixed Division 93 . . . . . . . . Solve Word Problems 94 . . . . . . . . Solve Word Problems 95 . . . . . . . . Review Multiplication and Division 96 . . . . . . . . Review Multiplication and Division

Table of Contents Unit 4 . . . . Operations with Decimals 97 . . . . . . . . Count and Write Money 98 . . . . . . . . Count and Write Money 99 . . . . . . . . Add and Subtract Money 100 . . . . . . . Add and Subtract Money 101 . . . . . . . Multiply and Divide Money 102 . . . . . . . Multiply and Divide Money 103 . . . . . . . Solve Word Problems 104 . . . . . . . Solve Word Problems 105 . . . . . . . Review Money 106 . . . . . . . Review Money Unit 5 . . . . Equations 107 . . . . . . . Write Number Sentences 108 . . . . . . . Describe Patterns 109 . . . . . . . Complete Patterns 110 . . . . . . . Write Equations 111 . . . . . . . Solve Equations 112 . . . . . . . Solve Equations 113 . . . . . . . Write Equations 114 . . . . . . . Review Equations Unit 6 . . . . Measurement 115 . . . . . . . Understand Time 116 . . . . . . . Read Time 117 . . . . . . . Find Time Intervals 118 . . . . . . . Find Time Intervals 119 . . . . . . . Add Intervals of Time 120 . . . . . . . Duration 121 . . . . . . . Find Lengths (Customary) 122 . . . . . . . Find Lengths (Customary) 123 . . . . . . . Convert Lengths 124 . . . . . . . Add and Convert Lengths 125 . . . . . . . Find Lengths (Metric) 126 . . . . . . . Find Lengths (Metric) 127 . . . . . . . Convert Lengths 128 . . . . . . . Add and Convert Lengths 129 . . . . . . . Understand Perimeter 130 . . . . . . . Find Perimeters 131 . . . . . . . Understand Area 132 . . . . . . . Find Areas 133 . . . . . . . Solve Word Problems 134 . . . . . . . Solve Word Problems

135 . . . . . . . Review Measurements 136 . . . . . . . Review Measurements 137 138 139 140 141 142 143 144

. . . . . . . Scope and Sequence . . . . . . . Answer Key . . . . . . . Answer Key . . . . . . . Answer Key . . . . . . . Answer Key . . . . . . . Answer Key . . . . . . . Answer Key . . . . . . . Answer Key

About This Series This series was created by Saddleback Educational Publishing to provide extensive math practice as a supplement to in-class instruction. Math Computation Skills and Strategies can easily be integrated into math curricula to reinforce basic skills.The lessons focus on practice, with up to 70 items a page. In addition, the lessons are designed to challenge students as their skills grow stronger. As the students progress through the individual lessons, the degree of difficulty increases. Closely adhering to state standards, this series provides grade-level appropriate lessons that are approachable for students at a range of abilities. Review lessons are interspersed throughout the book to allow students to reinforce their skills. Furthermore, the Scope and Sequence chart at the back of the book will help you choose lessons that are applicable to your curriculum.This series covers a range of topics, allowing students to build skills in multiple areas. Additionally, the lessons provide a variety of approaches, including word problems that emulate real-life situations. Each book is designed to challenge students who are learning skills at the corresponding grade level. However, the lessons were created not just for younger children, but for students of all ages. Saddleback Educational Publishing believes in allowing students to strengthen their skills with fun and exciting practice lessons.We hope you enjoy using this series to supplement class instruction and help students gain skills for proficiency in math computation.

Write Whole Numbers To write whole numbers, just figure out how many thousands, hundreds, tens, and ones there are.

Thousands

Hundreds

Tens

Ones

1

2

4

9

= 1,249

Directions: Write the number.

1.

=

2.

=

3.

=

4.

=

Directions: Write the number. a

b

5. 7 hundreds, 3 tens, 5 ones =

9 hundreds, 4 tens, 8 ones =

6. 3 hundreds, 9 tens, 9 ones =

4 hundreds, 6 ones =

7. 4,000 + 200 + 10 + 4 =

8 hundreds, 8 tens =

8. 5,000 + 600 + 8 =

9 thousands, 2 tens =

9. forty-eight =

one hundred twenty-five =

10. nine hundred forty-one =

five thousand twenty-three =

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 6

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Understand Place Value

th ou sa hu nds nd te red ns s on es

Understanding place value in whole numbers is easy. The ones place is on the right.

6,437 The 4 is in the hundreds place. Directions: Answer the question or complete the sentence.

9,685 1. Which digit is in the ones place? 2. Which digit is in the thousands place?

71,246 3. How many thousands are there? 4. How many tens are there?

854 5. The 5 is in the 6. The 4 is in the

place. place.

2,021 7. There is a 2 in the 8. How many hundreds are there?

place and in the

place.

692 9. How many ones are there? 10. The 9 is in the

place.

42,775 11. How many thousands are there? _____ place and in the 12. There is a 7 in the Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

place. Date

7

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Read Forms of Numbers You can write a number in lots of different ways.

Words: Nine thousand one hundred thirty-one Standard form: 9,131 Expanded form: 9,000 + 100 + 30 + 1

Directions: Write the number in standard form. a

b

1. 400 + 50 + 2 =

7,000 + 600 + 20 + 9 =

2. three thousand three =

2,000 + 50 + 5 =

3. 4,000 + 200 + 10 + 3 =

eight hundred twenty-five =

4. 600 + 40 +1 =

1,000 + 50 =

5. two thousand three hundred =

8,000 + 500 + 20 =

Directions: Write the number in expanded form. 6. 2,491 = 7. nine hundred five = 8. twenty-six = 9. 9,204 = 10. 2,212 = 11. 4,001 = 12. 599 =

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 8

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Order and Compare Whole Numbers When you order numbers, compare them to figure out which is greater.

853 > 421

99 < 203

> means greater than

8 + 3 = 11

< means less than

= means equal to

Directions: Complete the number sentence using =, <, or >. a

1.

2,105

2.

c

b

d

23

351

951

20+3

23

19

9

423

419

28

61

125

135

104

99

3.

18

10+7

484

448

305

311

1,102

4.

59

60

2,002

6+6

11

85

94

5.

725

635

7+8

624

642

99

98

6.

5,409

9,201

989

68

60+8

6,001

1,999 15 2,555

2,556

112

Directions: Complete. Use any number that makes the sentence true. a

c

b

d

7.

85 > ____

912 < ____

9 + 3 = ____

49 > _____

8.

600 > _____

8 + 7 < _____

203 < _____

89 < _____

9.

29 < _____

108 > _____

64 > _____

55 < _____

10.

65 < _____

14 = _____

101> _____

340 > _____

11.

12 + 2 > _____

850 > _____

79 < _____

9 + 6 < _____

12.

999 < _____

8 + 8 = _____

250 < _____

435 > _____

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 9

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Round Numbers to the Nearest Ten Rounding to the nearest ten is easy. Just look at the number in the ones place. If it’s less than 5, round down. If it’s greater than or equal to 5, round up!

80

81

82

83

84

85

86

87

88

89

90

10 11 12 13 14 15 16 17 18 19 15 is between 10 and 20. In 15, the digit in the ones place is equal to 5, so it rounds up to 20.

20

84 is between 80 and 90. In 84, the digit in the ones place is less than 5, so it rounds down to 80.

Directions: Complete the sentence. Round to the nearest ten. 1. 29 is between

and

and rounds to

.

2. 45 is between

and

and rounds to

.

3. 63 is between

and

and rounds to

.

4. 142 is between

and

and rounds to

.

5. 756 is between

and

and rounds to

.

Directions: Round to the nearest ten. a

c

b

d

6.

48

63

99

29

7.

19

24

82

55

8.

67

31

76

93

9.

124

271

387

452

10.

356

523

896

974

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 10

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Round Numbers When you round, just remember to look at the digit in the place to the right of the place to which you are rounding.

Round to the nearest thousand. Round to the nearest hundred.

4, 391 1,963

4,000 2, 000

Directions: Round to the nearest hundred. a

c

b

d

1.

843

1,291

6,920

481

2.

109

9,255

631

5,261

3.

1,962

819

4,925

777

4.

276

5,555

800

2,541

5.

1,200

899

6,729

3,270

6.

4,253

963

346

1,928

Directions: Complete the sentence. 7. 2,180 rounded to the nearest thousand is 8. 13,408 rounded to the nearest ten is 9. 650 rounded to the nearest hundred is 10. 990 rounded to the nearest hundred is 11. 8,077 rounded to the nearest thousand is 12. 6,455 rounded to the nearest ten is

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 11

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Whole Number Practice Let’s practice some of our skills!

Directions: Complete the chart.

Word Form

Standard Form

1.

Expanded

732

2.

Nine hundred five

3.

200 + 30 + 9

4.

Two thousand fifty-six

Directions: Complete the sentence.

14,983 5. There are 6.

hundreds. is the number in the tens place.

7. There are 4

.

8. 3 is the number in the

place.

Directions: Order the numbers from least to greatest. b

a

9. 432; 455; 193

261; 162; 621

10. 1,205; 905; 1,052

432; 623; 433

11. 699; 701; 679

271; 143; 1,003

12. 5,668; 6,212; 7,012

999; 909; 990

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 12

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Recognize and Name Fractions In a fraction, the top number is called the numerator, and the bottom number is called the denominator.

5 8

There are 5 shaded sections. 5 is the numerator. There are 8 sections in all. 8 is the denominator.

Directions: Write the fraction that names the shaded part. a

c

b

1.

2.

Directions: Shade the part of the figure indicated by the fraction. a

c

b

3.

1 4

6 7

4.

2 3

5 8

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

5 6

4 9

Date 13

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Compare Fractions When you compare fractions that have the same denominator, just compare the numerators.

1 3 1 31 3 < < < 8 8 8 88 8

Remember: < means less than and > means greater than.

Directions: Compare the fractions shown by the shaded parts. a

c

b

1.

1 3

2 1 3 3

2 3

1 2

2 1 2 2

2 2

3 4

5 8

7 5 8 8

7 8

5 7

4 5 7 7

4 7

7 10

1 3 4 4

1 4

2.

75 10 10

5 10

Directions: Write the fractions that name the shaded parts. Compare. a

b

c

3.

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 14

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Use Fractions Describing Part of a Group We use fractions to describe a part of a group.

7 of of the the flowers flowers are are white not shaded. 10

Directions: Write a fraction for the part that is not shaded. 1.

2.

3.

4.

Directions: Write a fraction. 5.

What fraction of the balls is white or striped?

6.

What fraction of the sundaes has a cherry or chocolate sauce?

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 15

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Compare Fractions When fractions have different denominators, a picture can help you compare them.

2 4 2 42 4 > > > 3 9 3 93 9 2 2 2 4 4 4 Remember: < means than anddenominator >the means than. Evenless though Even though Even the though denominator thegreater denominator is smaller, is smaller, is issmaller, greater is greater than is greater than . than . . 3 3 3 9 9 9 Directions: Compare the fractions shown by the shaded parts. a

c

b

1.

1 2

1 1 5 2

1 5

5 6

2 5 3 6

2 3

2 5

2 2 4 5

2 4

1 3

2 1 9 3

2 9

3 8

3 3 4 8

3 4

9 10

49 10 5

4 5

2.

Directions: Write the fractions shown by the shaded parts, then compare them. a

b

c

3.

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 16

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Understand Decimals Decimals are like fractions, but they’re written in a different way.

=

6 = 0.6 = six tenths 10

Directions: Write a decimal for the shaded part of each picture. a

c

b

1. =

=

=

=

=

=

2.

Directions: Rewrite in decimal form. a

b

c

3.

5 = _____ 10

two tenths = _____

9 = _____ 10

4.

4 = _____ 10

1 = _____ 10

seven tenths = _____

5.

six tenths = _____

3 = _____ 10

four tenths = _____

6.

7 = _____ 10

one tenth = _____

10 = _____ 10

7.

eight tenths = _____

ten tenths = _____

2 = _____ 10

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 17

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Write Decimals Writing decimals is easy.The decimal place to the right of the tenths is called hundredths.

=

52 = 0.52 = fifty - two hundredths 100

Directions: Write a decimal for the shaded part. a

b

c

1.

2.

Directions: Shade the part indicated by the decimal. a

b

c

3. 0.41

0.60

0.13

0.33

0.09

0.90

4.

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 18

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Compare Decimals and Fractions When you convert a fraction into a decimal, first you have to turn the denominator into 10 or 100.

=

1 5 = = 0.5 2 10

Directions: Write a decimal for each picture. a

b

1. =

2 = = _____ 5 10

=

4 = = _____ 5 10

2. =

3 = = _____ 4 100

=

1 = = _____ 5 10

Directions: Shade and compare. b

a

3.

0.5

0.52

0.69

0.7

0.08

0.8

0.44

0.4

4.

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 19

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Fraction Practice Here’s some practice to sharpen those skills!

Directions: Complete. a

b

1.

2.

3.

0.4

0.4

0.5

0.5

4. Martha has 10 marbles and 4 of them are blue.Write a decimal for the part that is NOT blue. 5. Kate saw 9 cars in the parking lot.Two of them were pink and four were yellow. Write the fraction that describes how many cars were either pink or yellow. Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 20

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Review Number Sense Time for a quiz! Here we go!

Directions: Complete the number sentence with <, >, or =. a

1. 2. 3. 4. 5.

695 695 33 44

6,6950 , 950 11 44

7 +5 7 +5 1212 0.54 0.54 0.45 0.45 99 1010

c

b

0.9 0.9

11 33

22 33

890 890

0.10 0.10 0.10.1 22 1010

0.30.3

11 99

11 88

d

910 910

0.17 0.17 0.20.2 55 66

55 88

499 499 501 501 0.8 0.8

9 +9 + 9 9 1616

7777 100 100

0.50.5 0.60.6 8, 312 8, 312 8, 321 8, 321 0.71 0.71 0.60.6 66 77

44 55

4, 444 4, 444 5, 000 5, 000

Directions: Rewrite the number in a new form. a

€€ € €€

b

6.

45 in expanded form _____

4 in decimal form _____ 10

7.

0.53 in fraction form _____

8, 359 in expanded form _____

8.

0.9 in word form _____

eight hundred six in standard form _____

9.

two thirds in fraction form _____

90 in decimal form _____ 100

400 + 80 +1 in standard form _____

0.87 in fraction form _____

10.

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 21

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Review Number Sense Keep up the great work. You’re almost there!

Directions: Order the numbers from least to greatest. a

b

1.

168; 68; 1, 068 _____________

1 1 1 ; ; _____________ 6 3 4

2.

0.2; 0.4; 0.9 _____________

9, 008; 10, 001; 8, 999 _____________

3.

4, 873; 6, 214; 3, 979 _____________ 0.98; 0.89; 0.9 _____________

4.

4 29 ; 0.34; _____________ 10 100

5. 6.

8 9 6 ; ; _____________ 9 10 7 7 77 70 ; ; _____________ 12, 230; 1, 230; 123 _____________ 100 100 100 5 5 5 ; ; _____________ 0.09; 0.4; 0.21 _____________ 8 5 6

Directions: Answer the questions. 7. What is 7,926 rounded to the nearest hundred? 8. In 12,456, which digit is in the thousands place? 9. Becky ate 7 of the 8 gumdrops she had.What fraction is left? 10. What is 8,455 rounded to the nearest thousand? 11. In 0.57, how many hundredths are there? 12. Eduardo had a box of 10 crayons and 6 are left. In decimal form, how many are left? 13. In which places are there 9s in 19,149? Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 22

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Understand Addition Addition is all about putting two or more groups of things into one group.

How many pieces of fruit in all? 0

1

2

3

4

5

6

7

8

9 10 11 12 13 14 15 16 17 18 19 20

Use a number line. 9 + 7 = 16 Directions: Add. Use the number line to help you. a

b

c

d

1.

9+ 2 =

7+ 6 =

5+ 3 =

8+ 4 =

2.

4+ 6 =

5+ 7 =

9 +1=

2+ 3 =

3.

7+ 7 =

9+ 3 =

4+ 2 =

6+ 0 =

4.

8 +1=

3+ 4 =

6+ 6 =

7+5=

5.

6+ 5 =

2+ 9 =

3+ 3 =

4+ 8 =

6.

9+ 0 =

5+ 5 =

6 +1=

7+ 2 =

7.

3 +1=

9+ 8 =

9+ 5 =

6+ 9 =

8.

5 +1=

9+ 9 =

7+ 8 =

4+ 4 =

9.

4+ 7 =

6+ 2 =

8+ 8 =

3+ 0 =

10.

7 +1=

8+ 0 =

2+ 8 =

7+ 9 =

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 23

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Understand Properties of Addition Understanding the properties of addition will help you succeed.

The Identity Property says that you can add zero to any number and get that number.

(2 + 4) + 6

2 + (4 + 6)

{

The Associative Property says that you can change how numbers are grouped to add.

6+3 = 3+6

{

The Commutative Property says that you can add numbers in any order.

6 + 6 = 12

2 + 10 = 12

9+0=9

Directions: Use the Commutative Property to switch the numbers.Then add. a

b

1. 3 + 7 =

+

=

2+9=

+

=

2. 8 + 4 =

+

=

6+3=

+

=

Directions: Use the Associative Property to regroup the numbers.Then add. a

+(

+

)

(9 + 7) + 3 =

+(

+ +(

= +

+ )

(6 + 9) + 1 =

+(

+

) =

+

)

{

{

4. (8 + 4) + 3 =

+

{

{

3. (6 + 5) + 2 =

b

=

+

=

Directions: Complete the number sentences to show the Identity Property.

5. 5 +

a

b

=

+7=

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

c

10 +

=

Date 24

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Add Fast Facts Now it’s time for some speed addition.

Memorizing facts like 5 + 5 will make adding bigger numbers easy. 5 + 5 = 10

Directions: Time yourself. Learn these facts by heart. a

b

c

d

e

f

1.

9+ 3 =

5+ 4 =

2+ 2 =

7+ 3 =

6+ 7 =

2+ 8 =

2.

3+ 5 =

2+ 9 =

0+ 7 =

3+ 9 =

0+ 2 =

10 + 3 =

3.

0+ 0 =

4+ 2 =

1+ 6 =

5+ 5 =

7+ 2 =

9 +1=

4.

3+ 6 =

1+ 4 =

4+ 5 =

3+ 4 =

0+ 9 =

8+ 3 =

5.

8+ 2 =

7 + 10 =

2+ 7 =

0+ 5 =

9+ 2 =

6+ 6 =

6.

8 +1=

3+ 3 =

1+ 9 =

6+ 4 =

5+ 3 =

2+ 4 =

7.

9+ 6 =

4+ 6 =

8+ 4 =

2+ 3 =

1+ 7 =

10 + 4 =

8.

6+ 8 =

3+ 8 =

7+ 7 =

2 + 10 =

7+ 8 =

1+ 9 =

9.

2+ 5 =

7+ 4 =

6+ 2 =

8 + 10 =

0+ 7 =

4+ 8 =

10.

0+ 6 =

3+ 7 =

1+ 5 =

9+ 8 =

4+ 4 =

6+ 3 =

11.

8+ 8 =

8+ 6 =

4+ 3 =

0+ 4 =

2+ 6 =

7+ 5 =

12.

4+ 7 =

0+ 8 =

6 +1=

9+ 9 =

5+ 2 =

6 + 10 =

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 25

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Practice Addition Lining up your numbers carefully can be very important.

Here’s how to rewrite this number sentence in vertical form. 11 + 8 =

11 + 8 19

Directions: Rewrite in vertical form, then add. a

1.

b

12 + 5 =

14 + 4 = +

2.

22 + 6 =

+

41+ 3 =

53 + 6 =

11+ 7 = +

+

34 + 5 = +

4.

18 + 1 = +

+ 3.

c

21+ 4 =

20 + 6 = +

+

52 + 4 = +

43 + 5 = +

+

Directions: Solve the problems. Show your work. a

b

5. Rose had twelve flowers in her basket. Lily gave her seven more. How many did she have in all?

Pete picked 31 apples and 8 pears in the orchard. How many pieces of fruit did he have in all?

+

+

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 26

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Practice Addition Regrouping is a great skill that will help you add big numbers.

This place-value chart will help you understand regrouping.

Tens

Ones 1

26 + 9 35 Directions: Add. Remember to regroup. a

b

c

d

e

f

1.

19 + 7

25 + 6

53 + 7

49 + 9

64 + 8

27 + 8

2.

34 + 8

42 + 9

77 + 6

83 + 9

56 + 6

32 + 9

3.

15 + 7

67 + 9

26 + 8

45 + 6

73 + 9

44 + 8

4.

35 + 5

84 + 6

29 + 9

61 + 9

88 + 8

27 + 7

5.

27 + 6

39 + 3

76 + 8

82 + 9

48 + 7

73 + 8

6.

57 + 3

75 + 6

47 + 9

24 + 7

62 + 8

49 + 6

7.

67 + 3

54 + 7

85 + 5

73 + 7

87 + 9

79 + 5

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 27

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Add Numbers to 2 Digits Here come some bigger numbers. You’ve got it! Tens

Ones

1

34 +27 61 Directions: Add. Regroup when necessary. a

b

c

d

e

f

1.

47 +31

29 +43

17 +34

36 +21

57 +33

45 +25

2.

56 +25

63 +44

85 +12

27 +57

48 +47

67 +24

3.

89 +45

28 +93

46 +52

38 +59

62 +28

95 +13

4.

43 +76

78 +24

69 +32

85 +13

92 +36

72 +85

5.

57 +75

96 +25

38 +49

47 +56

84 +37

92 +49

6.

88 +56

73 +46

65 +29

83 +27

55 +44

19 +84

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 28

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Add Numbers to 3 Digits Isn’t addition fun when you know how?

Hundreds

Tens

Ones

1

4 31 + 95 526 Directions: Add. Regroup when necessary. a

b

c

d

e

f

1.

532 + 7

621 + 4

334 + 3

728 + 1

842 + 7

633 + 5

2.

768 + 8

439 + 5

626 + 7

894 + 5

931 + 9

774 + 8

3.

834 + 21

973 + 15

463 + 42

756 + 29

529 + 31

964 + 7

4.

339 + 6

723 + 54

697 + 3

489 + 13

708 + 44

646 + 35

5.

821 + 89

457 + 27

530 + 17

649 + 85

798 + 8

902 + 69

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 29

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Add Numbers to 3 Digits Look at you go. You’re on a roll! 11

736 +278 1, 014 Directions: Add. a

b

c

d

e

f

1.

336 +241

495 +403

248 +431

526 +313

107 +231

455 +214

2.

637 +119

763 +141

238 +235

497 +320

841 +129

644 +256

3.

379 +104

468 +517

603 +209

741 +195

845 +135

173 +485

4.

806 +114

531 +259

113 +592

627 +402

761 +129

454 +517

5.

509 +732

644 +308

295 +167

385 +499

563 +268

700 +156

6.

263 +648

741 +238

856 +231

928 +491

588 +276

719 +355

7.

365 +887

439 +763

976 +248

892 +158

733 +789

957 +949

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 30

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Add Numbers to 4 Digits Let’s add with 4-digit numbers. 11

6, 537 + 89 6, 626 Directions: Add. a

b

1.

1, 354 + 5

3, 947 + 8

2.

2, 785 + 7

3.

c

d

e

f

7, 625 + 5

6, 433 + 17

3, 294 + 9

4, 653 + 6

8, 764 + 8

2, 941 + 9

6, 345 + 36

4, 659 + 7

7, 534 + 47

9, 425 + 28

5, 648 + 5

7, 391 + 8

3, 554 + 26

4, 927 + 35

1, 367 + 7

4.

8, 671 + 32

2, 656 + 15

4, 925 + 25

3, 742 + 8

2, 955 + 7

1156 , + 28

5.

3, 829 + 56

4, 892 + 8

7, 634 + 29

1, 593 + 24

9, 843 + 62

5, 421 + 19

6.

4, 396 + 27

6, 946 + 49

8, 473 + 43

2, 665 + 78

3, 451 + 39

6, 726 + 84

7.

7, 356 + 17

5, 726 + 88

2, 748 + 93

3, 986 + 37

9, 423 + 49

8, 647 + 95

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 31

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Add Numbers to 4 Digits Wow! Adding is a breeze. 1

1

1, 907 + 438 2, 345 Directions: Add. a

b

c

d

e

f

1.

6, 345 + 122

4, 251 + 435

2,117 + 240

5, 443 + 316

7,142 + 510

8, 712 + 228

2.

7, 653 + 187

2, 754 + 163

5, 278 + 419

6, 778 + 215

4, 351 + 209

9, 046 + 827

3.

1, 459 + 376

3, 447 + 635

5, 507 + 668

4, 329 + 655

7, 627 + 891

1, 005 + 596

4.

3, 469 + 258

9, 476 + 184

6, 429 + 583

2,115 + 872

4, 479 + 235

8, 774 + 693

5.

8, 267 + 249

3, 952 + 670

4, 337 + 825

5, 674 + 608

9, 306 + 864

7, 752 + 168

6.

5, 927 + 374

3, 456 + 587

6, 047 + 971

1, 963 + 527

7, 019 + 796

5, 286 + 756

7.

4, 368 + 954

6, 528 + 795

7, 622 + 587

8, 576 + 537

2, 497 + 734

9, 468 + 839

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 32

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Add Numbers to 4 Digits Those are some big numbers! 1

1

3, 948 +8, 432 12, 380 Directions: Add. a

b

c

d

e

f

1.

6, 725 +1, 362

2, 763 +4, 218

1, 923 +5, 063

2, 468 +1, 220

6, 654 +2, 337

3, 604 +2, 471

2.

2, 903 +4,107

6, 439 +2,119

8, 837 +1, 154

4,125 + 3,687

5,123 +1, 982

7, 754 +1, 635

3.

1, 876 +4, 312

4, 356 +2, 718

7, 344 +1, 682

3,649 +6,192

4, 894 +2, 767

5, 610 +3, 798

4.

9, 085 +2, 513

3,458 +4,761

5,139 +1, 473

4, 428 +7,164

6, 243 +1, 827

5, 409 +2, 398

5.

4,566 +2,115

8, 429 +1, 087

5, 610 +2, 895

3,645 +3,761

4, 008 +7, 099

6, 481 +2, 329

6.

2, 459 +7, 365

4,127 + 3, 943

6, 084 +2, 756

5,434 +1, 978

7, 941 +1, 538

8,196 +1,375

7.

1, 825 +3, 679

4, 856 +2, 957

6, 528 +1, 775

8, 409 +8, 694

2, 887 +4, 678

9, 415 +2, 786

Name €

Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 33

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Practice Mixed Addition Now, let’s mix it up a little.

Directions: Add. Remember to regroup when necessary. a

b

c

d

e

f

1.

23 +35

142 + 45

73 +19

63 +33

371 + 24

46 +37

2.

456 + 9

28 +54

64 +81

163 + 29

75 +25

286 + 27

3.

39 +54

752 + 8

259 + 27

76 +48

577 + 9

635 + 23

4.

726 + 94

1, 543 + 5

644 + 95

533 + 91

6, 593 + 7

249 + 86

5.

4, 824 + 163

74 +59

238 + 73

493 + 7

1, 356 + 39

37 +76

6.

7, 365 + 5

928 + 47

538 + 8

8,641 + 229

655 + 78

7, 658 + 9

7.

3, 556 + 85

5, 964 + 128

4, 983 + 8

6, 489 + 24

2, 219 + 83

4, 486 + 145

8.

6,541 + 849

9, 644 +3, 856

1, 706 + 539

2, 415 +6, 395

5, 337 +8, 376

6, 438 +4, 065

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 34

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Practice Mixed Addition Wow! You’re like a calculator.

Directions: Add. a

b

c

d

e

f

1.

39 +56

84 +92

395 + 7

57 +74

44 +66

93 +27

2.

483 + 7

65 +48

29 +56

86 +27

246 + 9

42 +98

3.

619 + 86

75 +35

237 + 8

93 +47

236 + 38

63 +77

4.

146 + 57

2, 257 + 8

94 +87

508 + 25

459 + 9

335 + 66

5.

645 +192

426 +289

763 +457

3, 795 + 6

487 + 53

296 + 73

6.

3, 954 + 26

225 +486

7, 750 + 68

644 +895

1, 463 + 257

829 +196

7.

2,109 + 894

1, 762 + 358

8, 624 + 587

4, 662 + 89

9, 624 + 76

2, 699 + 157

8.

4, 276 + 852

2, 097 +8, 654

6, 035 + 972

4,761 + 309

1, 842 + 3, 654

9, 346 +3, 385

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 35

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Understand Subtraction Subtraction has to do with figuring out the difference between two groups.

If you take away 6 balls, how many will be left over? 15 – 6 = 9 0

1

2

3

4

5

6

7

8

9 10 11 12 13 14 15 16 17 18 19 20

Directions: Subtract. Use the number line to help you. a

b

c

d

1.

7− 3 =

6 −1=

4− 2 =

8− 6 =

2.

9− 4 =

10 − 0 =

8− 5 =

9− 2 =

3.

8− 2 =

4− 3 =

10 − 7 =

6− 5 =

4.

10 − 9 =

9− 7 =

5− 3 =

11− 4 =

5.

7− 0 =

5 −1=

2− 0 =

14 − 5 =

6.

10 − 7 =

13 − 8 =

9− 8 =

7− 6 =

7.

17 − 3 =

8− 3 =

14 − 7 =

16 − 4 =

8.

12 − 6 =

20 − 4 =

11− 7 =

18 − 14 =

9.

17 − 10 =

13 − 11 =

19 − 3 =

16 − 6 =

10.

20 − 15 =

18 − 7 =

11− 5 =

12 − 9 =

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 36

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Subtract Fast Facts Let’s work on some speed subtraction.

Work on memorizing these facts, and you’ll be on your way to subtracting big numbers. 18 – 7 = 11 Directions: Time yourself. Learn these facts by heart. a

b

c

d

e

f

1.

4− 3 =

7 −1=

6− 3 =

2 −1=

9− 8 =

10 − 5 =

2.

5− 0 =

3 −1=

8− 3 =

11− 7 =

6− 4 =

7− 4 =

3.

13 − 6 =

9− 5 =

10 − 7 =

12 − 3 =

8− 2 =

6− 5 =

4.

7− 6 =

12 − 8 =

13 − 5 =

9− 8 =

2− 0 =

10 − 2 =

5.

6− 2 =

0− 0 =

14 − 7 =

8− 7 =

4 −1=

11− 5 =

6.

13 − 3 =

10 − 9 =

15 − 6 =

9− 9 =

12 − 4 =

7− 3 =

7.

3− 2 =

14 − 3 =

16 − 9 =

1− 0 =

19 − 12 =

15 − 13 =

8.

20 − 3 =

17 − 16 =

13 − 6 =

14 − 11 =

18 − 15 =

10 − 4 =

9.

18 − 5 =

19 − 0 =

16 − 5 =

13 − 9 =

17 − 7 =

14 − 3 =

10.

17 − 6 =

15 − 2 =

14 − 12 =

20 − 19 =

18 − 2 =

16 − 10 =

11.

14 − 14 =

12 − 4 =

13 − 3 =

17 − 0 =

16 − 1 =

15 − 7 =

12.

19 − 10 =

16 − 5 =

12 − 2 =

15 − 13 =

20 − 11 =

18 − 17 =

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 37

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Practice Subtraction Time to practice subtracting in vertical form.

Here’s how to rewrite this number sentence in vertical form. 17 − 5 =

17 − 5 12

Directions: Rewrite in vertical form, then subtract. a

1.

b

19 − 7 =

15 − 3 = –

2.

25 − 2 =

–

38 − 7 =

46 − 6 =

27 − 3 = –

–

34 − 3 = –

4.

12 − 2 = –

– 3.

c

39 − 8 =

16 − 5 = –

–

55 − 3 = –

28 − 5 = –

–

Directions: Solve. Use vertical form. a

b

5. Deborah counted 29 geese in the lake.Then, 8 flew away. How many were left?

Eric bought 3 dozen, or 36, apples. Unfortunately, 6 of them were rotten. How many good apples did he have?

–

–

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 38

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Practice Subtraction Use the place value chart to understand regrouping in subtraction.

Tens Ones

312

42 − 7 35 Directions: Subtract. Remember to regroup. a

b

c

d

e

f

1.

21 − 6

43 − 4

65 − 9

33 − 7

26 − 8

58 − 9

2.

47 − 9

23 − 8

32 − 5

84 − 6

70 − 2

62 − 3

3.

54 − 7

37 − 9

21 − 2

46 − 8

93 − 4

72 − 9

4.

35 − 7

61 − 3

72 − 4

94 − 7

38 − 9

54 − 6

5.

40 − 3

55 − 6

81 − 9

37 − 8

72 − 3

93 − 5

6.

67 − 9

28 − 9

50 − 7

82 − 6

63 − 5

33 − 4

7.

96 − 7

70 − 9

62 − 8

94 − 5

32 − 6

44 − 9

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 39

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Recognize Fact Families Fact families are groups of numbers that work together.

5+3=8

8–3=5

3+5=8

8–5=3

Directions: Use the fact families to write an addition sentence and a subtraction sentence. a

b

c

1.

Fact family: 9, 4, 5 Addition: Subtraction:

Fact family: 7, 10, 3 Addition: Subtraction:

Fact family: 15, 9, 6 Addition: Subtraction:

2.

Fact family: 12, 6, 6 Addition: Subtraction:

Fact family: 3, 4, 7 Addition: Subtraction:

Fact family: 8, 1, 9 Addition: Subtraction:

3.

Fact family: 11, 5, 6 Addition: Subtraction:

Fact family: 13, 3, 10 Addition: Subtraction:

Fact family: 9, 5, 14 Addition: Subtraction:

4.

Fact family: 8, 6, 2 Addition: Subtraction:

Fact family: 19, 13, 6 Addition: Subtraction:

Fact family: 15, 7, 8 Addition: Subtraction:

5.

Fact family: 22, 11, 11 Addition: Subtraction:

Fact family: 31, 15, 16 Addition: Subtraction:

Fact family: 9, 7, 16 Addition: Subtraction:

6.

Fact family: 10, 34, 24 Addition: Subtraction:

Fact family: 5, 19, 14 Addition: Subtraction:

Fact family: 25, 7, 18 Addition: Subtraction:

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 40

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Check Addition and Subtraction A great way to check your math when you add or subtract is to use fact families. Check this addition problem using subtraction.

23 34 +11⇒ −11 34 23

Check this subtraction problem using addition.

63 42 −21⇒ +21 42 63

Directions: Add, then subtract to check your answer. a

b

c

d

1.

37 + 9

25 +13

49 + 9

36 +11

21 +15

2.

54 + 8

29 +10

33 +24

42 +14

62 +23

3.

47 +19

65 +35

26 +41

39 +18

58 +25

e

Directions: Subtract, then add to check your answer. a

b

c

d

e

4.

73 −26

55 −46

63 −27

42 −31

75 −53

5.

45 −17

39 −14

51 −38

28 −19

64 −47

6.

67 −36

78 −49

82 −57

44 −16

93 −28

Name €

Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 41

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Subtract Numbers to 2 Digits Keep it up.You’re going strong!

Tens Ones

411

51 −3 8 13

Directions: Subtract. Regroup when necessary. a

b

c

d

e

f

1.

34 −11

47 −26

28 −15

36 −27

53 −35

62 −48

2.

32 −29

57 −12

72 −56

41 −19

52 −28

35 −16

3.

68 −49

23 −18

36 −19

44 −28

56 −47

65 −38

4.

76 −53

82 −67

54 −45

91 −85

61 −27

72 −55

5.

93 −38

60 −41

27 −18

34 −15

81 −72

56 −29

6.

84 −57

32 −12

51 −48

62 −43

70 −32

95 −76

7.

40 −26

92 −62

71 −55

56 −27

85 −59

68 −39

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 42

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Subtract Numbers to 3 Digits Great job! Subtraction is fun. Hundreds

Tens

Ones

214

34 6 − 63 283

Directions: Subtract. a

b

c

d

e

f

1.

467 − 8

243 − 6

678 − 11

162 − 9

384 − 7

231 − 5

2.

343 − 12

876 − 8

266 − 17

485 − 9

227 − 31

455 − 62

3.

851 − 19

237 − 45

111 − 8

351 − 13

627 − 91

521 − 6

4.

655 − 26

147 − 53

345 − 8

243 − 61

859 − 82

776 − 29

5.

914 − 52

645 − 29

703 − 51

633 − 9

252 − 18

559 − 72

6.

431 − 50

285 − 7

642 − 71

957 − 85

850 − 23

728 − 32

7.

306 − 75

597 − 89

900 − 70

423 − 15

257 − 83

849 − 72

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 43

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Subtract Numbers to 3 Digits The numbers are getting bigger. You can do it! 2 12 Sometimes you have to 3 2 17 regroup more than 437 once. −2 5 8 17 9

Directions: Subtract. a

b

c

d

e

f

1.

543 −322

673 −451

836 −703

461 −235

569 −534

245 −103

2.

685 −394

727 −516

425 −313

546 −227

884 −591

633 −413

3.

873 −765

297 −143

467 −329

348 −256

519 −376

706 −493

4.

471 −180

562 −239

278 −199

785 −390

643 −498

925 −706

5.

644 −468

865 −193

258 −149

762 −458

925 −168

881 −476

6.

457 −238

943 −267

726 −539

464 −385

729 −562

266 −179

7.

733 −257

845 −768

921 −632

681 −293

566 −278

725 −128

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 44

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Subtract Numbers to 4 Digits Here we go with 4 digits. 1 15 5 15

3, 2 6 5 − 7 8 3, 1 8 7 Directions: Subtract. a

b

c

d

1.

1, 439 − 7

2, 488 − 13

4, 616 − 5

8, 624 − 4

7, 335 − 3

3,148 − 36

2.

4, 225 − 23

3, 670 − 9

2, 435 − 7

8,163 − 14

5, 351 − 60

1, 495 − 37

3.

1, 735 − 70

9, 332 − 19

6, 078 − 9

5, 417 − 52

2, 634 − 28

7, 735 − 9

4.

7, 243 − 51

6, 462 − 94

4, 215 − 35

8, 654 − 79

3, 241 − 37

5, 072 − 33

5.

9, 552 − 46

3,147 − 85

5, 360 − 55

6,157 − 78

1, 536 − 40

2, 752 − 93

6.

6, 503 − 52

4,117 − 43

2, 731 − 86

7, 915 − 27

8, 344 − 32

5, 643 − 74

7.

4, 735 − 89

2,136 − 47

8, 640 − 63

5, 442 − 73

7, 612 − 35

9, 347 − 79

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

e

f

Date 45

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Subtract Numbers to 4 Digits Subtraction can be such a useful tool! 1 14 615

2, 4 7 5 − 846 1, 6 2 9 Directions: Subtract. a

b

c

d

e

f

1.

3, 951 − 430

8, 563 − 151

5, 738 − 216

6, 414 − 313

8, 954 − 837

2, 559 − 446

2.

7, 719 − 382

1, 445 − 232

6, 425 − 623

5,109 − 107

2, 646 − 512

8, 362 − 301

3.

5, 336 − 425

6, 652 − 375

7, 638 − 417

1, 365 − 346

2,145 − 834

9, 851 − 943

4.

8, 951 − 426

3,157 − 623

4, 215 − 196

5,123 − 810

6, 548 − 639

3, 646 − 417

5.

7, 315 − 407

6,124 − 119

3, 217 − 553

2,115 − 306

8, 346 − 469

3, 346 − 772

6.

5, 521 − 438

3, 762 − 970

8, 632 − 746

6,128 − 309

1, 566 − 387

2, 345 − 676

7.

6, 624 − 839

2, 436 − 687

7, 640 − 895

9, 872 − 993

5, 213 − 345

4, 245 − 966

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 46

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Subtract Numbers to 4 Digits The numbers are bigger, but all you have to do is keep track of one place value column at a time. 61413 4 311

7, 5 4 1 − 3, 7 5 7 3, 7 8 4 Directions: Subtract. a

b

c

d

1.

6, 439 −1, 326

5, 314 −2,112

7, 392 −6, 074

4, 487 −3, 215

3, 691 −2, 460

9, 511 −7, 306

2.

5, 562 −1, 459

2, 369 −2,187

6, 273 −5, 429

3,189 −2, 863

4,162 −1, 438

7, 215 −3,108

3.

4, 461 −2, 085

3, 256 −1, 947

6, 443 −6, 289

7, 583 −2, 791

5, 723 −4, 814

9,128 −7, 309

4.

2,145 −1, 562

8, 343 −2, 915

4, 663 −3, 274

6, 591 −3, 847

8, 430 −2, 516

3, 315 −1, 462

5.

6, 548 −2,195

3, 197 − 2, 218

7, 216 −5, 309

8, 746 −2, 298

5, 637 −2, 849

9, 914 −7, 367

6.

2, 276 −1, 577

9, 541 −8, 765

5, 418 −4, 369

6, 521 −3, 333

7, 211 −2, 846

3, 263 −1, 974

7.

8, 825 −4, 957

6, 348 −1, 579

2,140 −1, 593

9, 615 −7, 687

5, 614 −2, 837

7, 761 −3, 965

Name €

Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

e

f

Date 47

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Practice Mixed Subtraction It’s practice time.

Directions: Subtract. Remember to regroup when necessary. a

b

c

d

e

f

1.

36 −15

95 −73

74 −31

86 −39

29 −17

47 −28

2.

67 −59

235 − 6

481 − 7

82 −67

35 −25

40 −13

3.

119 − 26

438 − 9

221 − 56

465 − 59

624 − 6

856 − 77

4.

414 −236

827 −119

336 − 47

641 −394

723 −536

553 −429

5.

6, 348 − 9

428 −349

7,153 − 82

8, 546 − 97

2,136 − 8

6, 614 − 35

6.

4, 563 − 9

6, 215 − 344

9,331 − 358

5, 327 − 84

4, 935 − 976

7, 250 − 79

7.

4, 675 − 89

5,461 − 395

8, 854 −2, 932

7, 653 − 498

6, 463 − 278

9,126 − 77

8.

3, 115 − 2,604

9,651 − 837

7, 417 −3, 854

2,671 − 395

5, 315 −1, 972

6, 431 −2, 915

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 48

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Practice Mixed Subtraction Stretch those skills.

Directions: Subtract. Remember to regroup when necessary. a

b

c

d

e

f

1.

68 −59

73 −38

440 − 26

94 −76

238 − 19

67 −49

2.

453 − 87

238 − 45

652 − 99

821 − 62

434 − 9

952 − 78

3.

658 − 29

540 − 76

223 −145

674 −439

776 −281

343 − 69

4.

847 −149

327 −309

9, 410 − 36

522 −339

2, 456 − 7

7, 345 − 67

5.

1146 , − 8

4, 634 − 75

8, 312 − 9

3,451 − 133

567 −197

644 −347

6.

9, 560 − 294

2, 734 −2, 687

4,159 − 83

7, 624 − 851

8, 631 − 144

5,127 − 78

7.

1143 , − 275

6, 594 − 398

3, 659 −1, 882

8, 423 − 795

5, 664 −2, 783

9, 457 −1, 369

8.

5, 495 −1, 567

4, 432 −3,168

7, 327 −6, 719

4, 332 − 195

3, 673 − 957

8, 633 −5, 752

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 49

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Add Three Numbers Adding three numbers is a lot like adding two. Just remember to add one place at a time. 1

17 131 + 224 372 Directions: Add. Don’t forget to regroup. a

b

c

d

1.

13 21 +44

32 12 +23

45 32 +11

131 46 + 25

203 47 + 13

82 231 +104

2.

62 14 +19

26 13 +41

120 342 + 37

237 40 + 51

43 24 +55

236 102 + 40

3.

73 24 +30

332 140 +415

26 83 +42

118 236 +205

621 133 + 220

146 22 +405

4.

745 107 + 43

271 305 +132

451 85 +213

27 432 +184

134 93 +430

620 141 +209

5.

68 240 +331

277 104 +312

601 235 +143

321 453 + 42

166 245 +403

524 123 +261

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

e

f

Date 50

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Solve Word Problems Word problems are fun because they tell a story.

When you solve a word problem, look for the key phrase that tells you which operation to use. Key phrases for addition: in all, altogether, total Key phrases for subtraction: how many more, left, difference

Directions: Solve. Hint: Underline the key phrase before you solve. 1. There were 25 people at the party, but 17 had to leave early. How many people were left at the party?

2. Katie is 132 centimeters tall, and Oscar is 151 centimeters tall.What is the difference in height between them?

3. Larissa and her dad went to the orchard to pick apples. Larissa picked 31 apples, and her dad picked 39. How many apples did they pick altogether?

4. Manuel has two books he wants to read. One is 46 pages long, and the other is 55 pages long. If he reads both books, how many pages will he have read in all?

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 51

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Solve Word Problems Sometimes it’s helpful to draw a picture when you are solving a word problem. Becky lives 26 miles from the mall, and Teresa lives 15 miles from the mall. How far will Becky have traveled if she goes to the mall and then to Teresa’s house? 26 + 15 = 41 miles

Directions: Solve. Underline the key words or draw a picture. 1. The Smith Building is 134 feet tall, and the Copley Building is 98 feet tall. How much taller is the Smith Building?

2. Jimmy is putting up a new clothesline that goes from the house to the tree in the backyard and from the tree to the garage. If the tree is 21 feet from the house and 19 feet from the garage, how much string should he buy to make the clothesline?

3. Sacramento is between Placerville and San Francisco along Highway 80. If San Francisco is about 92 miles from Sacramento and about 137 miles from Placerville, how far is Sacramento from Placerville?

4. Last year Paula was 123 centimeters tall, but she grew 12 centimeters. How tall is she now?

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 52

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Review Addition and Subtraction Let’s bring it all together with some practice.

Directions: Solve. a

b

c

d

e

f

1.

48 −36

18 +21

34 +52

73 −51

186 − 31

24 +35

2.

236 + 42

57 +24

217 − 15

189 − 57

76 −21

341 + 29

3.

247 + 57

423 − 72

240 − 36

133 + 45

94 −71

237 + 38

4.

119 − 50

344 −123

15 462 +519

325 +417

51 213 +126

524 −370

5.

4, 573 + 24

736 − 52

378 +144

34 322 + 86

9, 452 − 40

974 − 39

Directions: Solve. 6. Raquel counted 27 birds on the fence in her yard. An hour later there were 13 more. How many birds were there in all on the fence?

€

7. Yung has a collection of 78 baseball cards while Yuri has a collection of 113. How many more cards does Yuri have than Yung?

Name €

Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 53

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Review Addition and Subtraction Here’s a little more addition and subtraction.

Directions: Solve. a

b

c

d

e

f

1.

159 − 32

24 31 +14

233 + 54

73 −58

325 −103

49 +73

2.

1459 − 33

673 −145

43 12 +14

5, 621 − 9

18 23 +34

276 +114

3.

422 −305

27 32 +45

726 − 32

694 +208

766 +4, 317

23 402 + 54

4.

633 +947

826 −147

1748 , − 59

82 143 + 21

2185 , − 933

844 −195

5.

1, 499 +2, 381

2, 845 + 461

125 371 +150

2, 356 − 438

954 −788

7, 634 − 235

Directions: Solve. 6. Julie’s favorite candy store is 25 blocks from her house, and the art supply store is 17 blocks further on from the candy store. How many blocks will Julie have to walk to get from her house to the art supply store if she stops at the candy store on the way? € Name €

Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 54

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Find Equivalent Fractions By looking at the pictures you can tell that the fractions are equal.

1 2 1 21 2 = = = 2 4 2 42 4 Directions: Use the pictures to find the equivalent fraction. a

b

c

1 1 1 = = = 3 93 93 9

3 3 3 = = = 4 84 84 8

5 5 5 = = = 6 126 12 6 12

1 1 1 = = = 4 84 84 8

1 1 1 = = = 2 62 62 6

2 2 2 = = = 6 96 96 9

3 3 3 = = = 4 124 12 4 12

2 2 2 = = = 4 84 84 8

2 2 2 = = = 5 105 10 5 10

1 1 1 = = = 2 102 10 2 10

2 2 2 = = = 3 123 12 3 12

1 1 1 = = = 2 42 42 4

1.

2.

3.

4.

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 55

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Reduce Fractions To simplify a fraction, just find an equivalent fraction.

4 1 = 8 2

Directions: Use the pictures to help you simplify the fractions. a

b

c

4 = 6

2 = 8

2 = 4

3 = 9

2 = 10

8 = 12

4 = 12

6 = 9

4 = 10

6 = 12

8 = 10

3 = 12

1.

2.

3.

4.

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 56

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Add Fractions When you add fractions with the same denominators, all you have to do is add the numerators.

1 2 3 + = 8 8 8

Directions: Add the fractions. Shade the picture to figure out the answer. a

c

b

1.

1 2 + = 4 4

2 3 + = 7 7

5 2 + = 9 9

1 4 + = 6 6

5 6 + = 12 12

2 3 + = 8 8

7 2 + = 11 11

4 1 + = 9 9

5 1 + = 7 7

1 1 + = 3 3

5 2 + = 8 8

3 4 + = 10 10

2.

3.

4.

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 57

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Add Fractions Sometimes after you add fractions you need to simplify the sum.

1 5 6 2 + = = 9 9 9 3

Directions: Add the fractions, then simplify. a

c

b

1.

3 3 + = 8 8

=

1 3 + = 6 6

=

3 1 + = 10 10

6 1 + = 7 7

=

1 3 + = 8 8

=

5 3 + = 12 12

=

2 1 + = 9 9

=

4 4 + = 10 10

=

4 1 + = 5 5

=

=

2.

4 5 + = 12 12

=

3.

1 1 + = 6 6

=

4.

3 1 + = 12 12

=

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 58

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Subtract Fractions To subtract fractions with the same denominators, just subtract the numerators.

5 2 3 − = 7 7 7

Directions: Subtract the fractions. Use the picture to help you. a

c

b

1.

5 4 − = 6 6

7 2 − = 8 8

10 3 − = 12 12

3 2 − = 4 4

7 3 − = 9 9

2 1 − = 7 7

2 1 − = 3 3

9 2 − = 10 10

5 4 − = 8 8

8 3 − = 9 9

6 1 − = 8 8

6 4 − = 11 11

2.

3.

4.

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 59

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Subtract Fractions Sometimes, after subtracting, you can simplify the difference.

10 - 2 = 8 = 2 12 12 12 3

Directions: Subtract the fractions, then simplify. a

c

b

1.

11 1 − = 12 12

=

3 1 − = 4 4

=

5 3 − = 8 8

=

4 2 − = 6 6

=

7 3 − = 8 8

=

9 1 − = 10 10

=

8 2 − = 9 9

=

9 6 − = 12 12

=

8 3 − = 10 10

=

7 3 − = 12 12

=

7 1 − = 8 8

=

5 2 − = 6 6

=

2.

3.

4.

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 60

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Solve Word Problems How about some word problems with fractions?

6 There is ᎏ of Jackson’s birthday cake left in the refrigerator. If he and 10 3 his parents eat ᎏ more of the cake for dinner, how much will be left? 10 6 3 3 − = 10 10 10 Directions: Add or subtract fractions to solve the word problems. Draw a picture if you’d like. 2 1 1. Pedro ate ᎏ of a can of soup for lunch and ᎏ for dinner. How much soup 4 4 did he eat?

2 2. There are 9 chapters in the book Janine is reading. If she read ᎏ yesterday 9 3 and another ᎏ today, how much of the book did she read over the 2 days? 9

3. There is a set of 7 blocks on the table. 5 of the blocks are green and 2 are yellow.What fraction of the set of blocks is green?

3 4 4. Pauline had a party yesterday and ᎏ of the cheese pizza was left. ᎏ of 12 12 the mushroom pizza was left. She put the pieces together in the same box. What fraction of a pizza did she have left over? Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 61

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Solve Word Problems Now let’s add or subtract, then reduce.

1 5 Fiona had one can of paint that is ᎏ full and another that is ᎏ full. If 8 8 she combines the two cans of paint, how much will she have in all? 5 1 6 3 + = = 8 8 8 4

Directions: Add or subtract fractions to solve the word problems. Don’t forget to simplify your answer. 5 3 1. Collin had ᎏ of a jar of gumballs. He gave away ᎏ. How much did he have left? 6 6 2. While cleaning up his room, Joaquin noticed that he had one box of pencils that was 2 4 ᎏ full and another that was ᎏ full. If he decides to combine the boxes of pencils, 9 9 how full will the new box be? 3 7 3. Khalila had ᎏ of a pizza and she ate ᎏ. How much was left? 8 8 5 4. Joann and Inez decided to combine their packs of gum. If Joann had ᎏ of a pack 12 3 and Inez had ᎏ of a pack, how much do they have together? 12 7 5. Pete’s aunt gave him $11 for his birthday. If he spent ᎏ on baseball cards, how 11 much did he have left? Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 62

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Review Fractions Let’s practice adding and subtracting fractions.

Directions: Add or subtract. a

c

b

1.

3 1 + = 7 7

5 2 − = 10 10

5 4 − = 6 6

1 2 + = 5 5

3 5 + = 12 12

=

6 2 − = 9 9

10 4 − = 11 11

5 3 − = 8 8

=

1 1 + = 4 4

1 1 + = 3 3

9 6 − = 10 10

8 2 + = 12 12

=

4 1 + = 6 6

7 3 − = 8 8

=

2.

3.

=

4.

5.

2 4 + = 9 9 €

=

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 63

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Review Fractions Here’s some fraction review.

Directions: Compare the fractions using <, >, or =.

a

c

b

1.

2.

3.

Directions: Write a fraction and a decimal to tell how much is shaded. 4.

or

or

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

or

Date 64

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Understand Multiplication Multiplication is like repeated addition.

3 + 3 + 3 + 3 = 12 3 x 4 = 12 Directions: Add or multiply. a

b

1.

7 × 2 = 7 + 7 = ___

6 × 4 = 6 + 6 + 6 + 6 = ___

2.

9 × 3 = 9 + 9 + 9 = ___

8 × 1 = 8 = ___

3.

2 × 5 = 2 + 2 + 2 + 2 + 2 = ___

7 × 4 = 7 + 7 + 7 + 7 = ___

4.

4 × 0 = ___

9 × 2 = 9 + 9 = ___

Directions: Change the addition sentence into a multiplication sentence. Solve. b

a

5.

7 + 7 + 7 = _____ = ___

1 +1 +1 +1 +1 = _____ = ___

6.

4 + 4 + 4 + 4 + 4 = _____ = ___

5 + 5 + 5 = _____ = ___

7.

9 + 9 = _____ = ___

6 + 6 + 6 + 6 + 6 + 6 = _____ = ___

8.

8 + 8 + 8 = _____ = ___

2 + 2 + 2 = _____ = ___

9.

3 + 3 + 3 + 3 + 3 + 3 = _____ = ___

7 + 7 = _____ = ___

6 + 6 + 6 = _____ = ___

9 + 9 + 9 + 9 = _____ = ___

10.

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 65

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Multiply by 0 and 1 Remember these rules when multiplying by 0 and 1. When you multiply by 0, you always get 0. 9 x 0 = 0 When you multiply by 1, you always get the number you started with. 3x1=3 Directions: Multiply. a

b

c

d

e

1.

8 ×1

5 ×0

0 ×7

1 ×4

2 ×0

2.

3 ×0

1 ×2

6 ×0

9 ×1

1 ×0

3.

1 ×3

7 ×1

1 ×8

0 ×4

1 ×5

4.

7 ×0

5 ×1

4 ×1

0 ×2

0 ×6

5.

0 ×5

6 ×1

2 ×1

8 ×0

0 ×3

6.

1 ×1

4 ×0

1 ×7

0 ×5

0 ×0

7.

1 ×9

0 ×8

0 ×1

1 ×6

0 ×9

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 66

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Multiply Fast Facts Learning these fast facts will make you a multiplication whiz!

Directions: Time yourself. Learn these facts by heart. a

b

c

d

e

1.

2 ×1

2 ×2

2 ×3

2 ×4

2 ×5

2.

2 ×6

2 ×7

2 ×8

2 ×9

2 ×10

3.

3 ×1

3 ×2

3 ×3

3 ×4

3 ×5

4.

3 ×6

3 ×7

3 ×8

3 ×9

3 ×10

5.

4 ×1

4 ×2

4 ×3

4 ×4

4 ×5

6.

4 ×6

4 ×7

4 ×8

4 ×9

4 ×10

7.

5 ×1

5 ×2

5 ×3

5 ×4

5 ×5

8.

5 ×6

5 ×7

5 ×8

5 ×9

5 ×10

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 67

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Multiply Fast Facts Once you memorize these fast facts, you’ll be on your way.

Directions: Time yourself. Learn these facts by heart. a

b

c

d

e

1.

6 ×1

6 ×2

6 ×3

6 ×4

6 ×5

2.

6 ×6

6 ×7

6 ×8

6 ×9

6 ×10

3.

7 ×1

7 ×2

7 ×3

7 ×4

7 ×5

4.

7 ×6

7 ×7

7 ×8

7 ×9

7 ×10

5.

8 ×1

8 ×2

8 ×3

8 ×4

8 ×5

6.

8 ×6

8 ×7

8 ×8

8 ×9

8 ×10

7.

9 ×1

9 ×2

9 ×3

9 ×4

9 ×5

8.

9 ×6

9 ×7

9 ×8

9 ×9

9 ×10

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 68

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Multiply by 2, 5, and 10 Remember these rules when multiplying by 2, 5, or 10.

When you multiply by 2, the product is always even. 2 x 9 = 18 When you multiply by 5, the product always ends in 0 or 5. 5 x 3 = 15 5 x 6 = 30 When you multiply by 10, the product always ends in 0. 10 x 4 = 40

Directions: Multiply. a

b

c

d

1.

4 ×2

5 ×0

4 ×10

10 × 7

4 ×5

10 × 3

2.

1 ×2

3 ×5

10 × 2

8 ×5

5 ×2

6 ×5

3.

2 ×10

5 ×5

2 ×1

6 ×2

10 ×10

10 ×1

4.

2 ×5

10 × 0

7 ×5

2 ×9

5 ×3

2 ×8

5.

3 ×10

5 ×1

9 ×10

0 ×10

5 ×6

5 ×8

6.

2 ×6

5 ×4

5 ×9

7 ×2

2 ×2

1 ×5

7.

10 × 4

0 ×2

5 ×7

1 ×10

10 × 2

10 × 5

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

e

f

Date 69

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Multiply 1-Digit Numbers Let’s practice those multiplication skills one more time.

Directions: Multiply. a

b

c

d

e

f

1.

4 ×4

5 ×9

3 ×2

7 ×6

5 ×10

6 ×6

2.

8 ×1

3 ×7

8 ×6

5 ×0

2 ×9

4 ×3

3.

8 ×5

10 × 6

1 ×9

10 × 0

4 ×7

9 ×6

4.

5 ×5

4 ×9

0 ×8

10 × 9

8 ×7

6 ×1

5.

8 ×10

7 ×5

9 ×9

2 ×7

5 ×4

10 × 4

6.

3 ×0

9 ×7

6 ×5

3 ×9

7 ×7

3 ×1

7.

9 ×0

0 ×7

8 ×8

3 ×5

6 ×2

2 ×8

8.

4 ×6

3 ×10

10 ×10

1 ×7

4 ×1

9 ×8

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 70

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Understand Properties of Multiplication Multiplication has a lot of cool properties.

The Distributive Property says that if you are multiplying a number by two other numbers that are added together, you can multiply by each number and then add.

5 x 4 = 20

{

(2 x 3) x 4 = 2 x (3 x 4) 6 x 4 = 24

2 x 12 = 24

5 x (4 + 3) = 5 x 4 + 5 x 3

{ { {

The Associative Property says that you can change how numbers are grouped when you multiply.

4 x 5 = 20

{

The Commutative Property says that you can multiply numbers in either order.

5 x 7 = 35

20 + 15 = 35

Directions: Use the Commutative Property to solve. a

b

1. 4 x 7 =

x

=

9x2=

x

=

2. 3 x 5 =

x

=

6x4=

x

=

Directions: Use the Associative Property to regroup the numbers. a

b

3. (3 x 7) x 2 =

(9 x 2) x 4 =

4. 2 x (6 x 9) =

5 x (7 x 4) =

Directions: Use the Distributive Property to rewrite the number sentence. a

b

5. 6 x (3 + 2) =

x

+

x

8 x (5 + 9) =

x

+

x

6. (2 + 5) x 6 =

x

+

x

(7 + 3) x 9 =

x

+

x

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 71

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Multiply 2 Digits by 1 Digit When you multiply a 1-digit number by a 2-digit number, multiply the 1-digit number by the value of each place in the 2-digit number. 41 × 3 3 (3 ×1 = 3) +120 (3 × 40 = 120) 123 (3 +120 = 123) Directions: Multiply. a

b

c

d

e

f

1.

12 × 4

23 × 2

34 × 2

53 × 3

61 × 5

24 × 2

2.

81 × 7

32 × 3

23 × 3

64 × 2

51 × 9

73 × 2

3.

52 × 2

44 × 2

91 × 6

53 × 2

61 × 5

94 × 2

4.

83 × 3

31 × 7

62 × 3

73 × 2

84 × 2

22 × 4

5.

72 × 3

63 × 3

54 × 2

92 × 2

81 × 8

74 × 2

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 72

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Multiply 2 Digits by 1 Digit Check out this multiplication problem. 24 × 6 24 (6 × 4 = 24) +120 (6 × 20 = 120) 144 (24 +120 = 144) Directions: Multiply. a

b

c

d

e

f

1.

62 × 7

35 × 4

84 × 3

26 × 5

53 × 8

72 × 6

2.

24 × 6

83 × 7

68 × 2

45 × 3

92 × 7

33 × 6

3.

73 × 8

52 × 9

34 × 7

28 × 4

63 × 5

82 × 6

4.

36 × 7

47 × 5

84 × 8

29 × 3

75 × 5

94 × 3

5.

86 × 5

59 × 8

62 × 6

46 × 3

98 × 4

79 × 9

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 73

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Multiply 3 Digits by 1 Digit As the numbers get bigger, just remember to multiply the 1-digit number by the value of each place in the 3-digit number.

Directions: Multiply.

a

b

c

d

e

f

1.

724 × 2

312 × 4

632 × 3

421 × 3

733 × 2

822 × 4

2.

523 × 3

711 × 9

314 × 2

841 × 2

631 × 3

244 × 2

3.

613 × 3

142 × 2

512 × 3

734 × 2

842 × 2

922 × 3

4.

443 × 2

811 × 6

733 × 3

524 × 2

644 × 2

231 × 3

5.

713 × 2

523 × 3

243 × 2

314 × 2

611 × 5

821 × 3

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 74

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Multiply 3 Digits by 1 Digit Keep up the great work!

Directions: Multiply.

a

b

c

d

e

f

1.

437 × 5

635 × 4

756 × 3

261 × 7

527 × 4

833 × 5

2.

275 × 6

334 × 7

859 × 3

628 × 4

455 × 9

736 × 6

3.

526 × 9

483 × 3

792 × 6

373 × 5

944 × 7

853 × 4

4.

364 × 8

795 × 3

538 × 7

829 × 9

473 × 4

287 × 8

5.

447 × 7

965 × 5

372 × 9

741 × 8

874 × 5

566 × 4

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 75

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Multiply 4 Digits by 1 Digit You can use the same technique with 4-digit numbers that you used with 3-digit numbers.

Directions: Multiply.

a

b

c

d

e

f

1.

5, 414 × 2

7, 322 × 3

2,113 × 3

8, 232 × 4

5, 432 × 2

6,111 × 8

2.

4, 221 × 4

6, 332 × 3

7, 011 × 9

5, 243 × 2

7, 231 × 3

8, 441 × 2

3.

5,113 × 3

8, 243 × 2

9, 413 × 2

6, 021 × 4

4, 332 × 3

3, 244 × 2

4.

2, 211 × 4

5,101 × 7

7, 313 × 3

9,121 × 4

6, 434 × 2

8,144 × 2

5.

6, 233 × 3

3, 221 × 4

8, 442 × 2

9,111 × 8

4, 210 × 4

5, 332 × 3

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 76

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Multiply 4 Digits by 1 Digit Here are some more big numbers. Give it a try.

Directions: Multiply.

a

b

c

d

e

f

1.

5, 247 × 3

7,146 × 6

3, 554 × 7

8, 924 × 4

4, 636 × 5

2, 880 × 7

2.

7, 633 × 8

4, 275 × 3

3148 , × 7

8, 609 × 5

9, 416 × 4

5, 225 × 6

3.

9, 807 × 2

8, 634 × 6

2175 , × 4

4, 063 × 5

3, 951 × 8

7, 652 × 9

4.

5, 468 × 4

6, 047 × 9

1593 , × 6

4,119 × 2

6, 840 × 8

3174 , × 7

5.

8, 963 × 4

7,184 × 3

9, 920 × 9

1673 , × 7

4, 056 × 6

2, 478 × 8

€ Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 77

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Practice Multiplication You zipped through another section, and now it’s practice time again.

Directions: Multiply.

a

b

c

d

e

f

1.

54 × 2

63 × 3

82 × 4

21 × 5

35 × 6

43 × 2

2.

71 × 8

33 × 2

28 × 4

132 × 4

43 × 6

82 × 2

3.

423 × 3

207 × 5

62 × 8

733 × 2

84 × 7

811 × 6

4.

231 × 3

611 × 5

240 × 6

825 × 7

433 × 3

509 × 4

5.

4,122 × 3

370 × 7

431 × 2

823 × 4

1173 , × 3

6, 450 × 6

€ Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 78

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Practice Multiplication The more you practice, the easier it gets.

Directions: Multiply.

a

b

c

d

e

f

1.

85 × 7

37 × 6

29 × 8

146 × 5

72 × 9

456 × 2

2.

344 × 7

643 × 5

76 × 3

455 × 7

83 × 9

630 × 5

3.

481 × 4

1561 , × 7

346 × 6

2, 409 × 5

754 × 8

628 × 3

4.

4,158 × 6

133 × 9

563 × 7

2, 485 × 4

7, 036 × 5

1609 , × 7

5.

8, 841 × 5

2, 615 × 4

7, 892 × 7

3, 605 × 9

4,163 × 8

6, 652 × 6

€ Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 79

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Understand Division If you have 8 pieces of candy, and you want to divide them evenly among 4 friends, use division. 2 4 8

)

8÷4 = 2 Division is the inverse of multiplication. 6÷2= 3

6 = 2× 3

Directions: Solve. a

1.

4 ×6 6 24 24

5 ×4 4 20 20

9 ×3 3 27 27

7 ×8 8 56 56

6 ×9 9 54 54

6 ×6 6 36 36

5 ×8 8 40 40

8 ×3 3 24 24

9 ×4 4 36 36

6 ×7 7 42 42

8 ×8 8 64 64

4 ×7 7 28 28

7 ×7 7 49 49

9 ×5 5 45 45

3 ×7 7 21 21

5 ×5 5 25 25

8 ×4 4 32 32

9 ×2 2 18 18

4 ×4 4 16 16

)

3.

)

4.

)

€ 5.

d

7 ×5 5 35 35

)

2.

c

b

)

)

)

)

) )

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

)

)

)

)

)

)

)

)

)

)

Date 80

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Divide Fast Facts Practice these division problems to sharpen your skills.

Directions: Divide. a

1.

2.

3.

4.

5.

6.

7.

€

€

8.

b

c

d

e

22

)

24

)

26

)

28

)

2 10

2 12

)

2 14

)

2 16

)

2 18

)

2 20

33

)

36

)

39

)

3 12

)

3 15

3 18

)

3 21

)

3 24

)

3 27

)

3 30

4 4

)

4 8

)

4 12

)

4 16

)

4 20

)

4 28

)

4 32

)

4 36

)

4 40

55

)

5 10

)

5 15

)

5 20

)

5 25

)

5 35

)

5 40

)

5 45

)

5 50

4 24

5 30

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

)

)

) )

) )

) )

Date 81

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Divide Fast Facts With this you’ll know your fast facts up to 9.

Directions: Divide. a

1.

2.

3.

4.

5.

6.

7.

€

8.

b

c

d

66

)

6 12

)

6 18

)

6 24

)

6 30

6 36

)

6 42

)

6 48

)

6 54

)

6 60

7 7

)

7 14

)

7 21

)

7 28

)

7 35

7 42

)

7 49

)

7 56

)

7 63

)

7 70

8 8

)

8 16

)

8 24

)

8 32

)

8 40

)

8 56

)

8 64

)

8 72

)

8 80

99

)

9 18

)

9 27

)

9 36

)

9 45

)

9 63

)

9 72

)

9 81

)

9 90

8 48

9 54

Name €

e

Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

)

)

) ) ) )

) )

Date 82

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Divide by 2, 5, and 10 Remember these rules when dividing by 2, 5, or 10.

Even numbers are always evenly divisible by 2. 16 ÷ 2 = 8 Numbers that end in 0 or 5 are always evenly divisible by 5. 35 ÷ 5 = 7 40 ÷10 = 4

Numbers that end in 0 are always evenly divisible by 10.

Directions: For each number, write 2, 5, and/or 10 if the number is divisible by 2, 5, or 10. a

b

1.

625 _____

38 _____

320 _____

2.

342 _____

2165 , _____

94 _____

3.

720 _____

805 _____

5, 000 _____

4.

64 _____

228 _____

435 _____

5.

1, 200 _____

825 _____

7, 202 _____

b

c

c

Directions: Divide. a

€ €

6.

20 ÷ 2 =

18 ÷ 9 =

50 ÷ 5 =

7.

25 ÷ 5 =

70 ÷ 7 =

10 ÷ 5 =

8.

40 ÷ 4 =

16 ÷ 8 =

35 ÷ 7 =

9.

30 ÷ 3 =

30 ÷ 6 =

30 ÷10 =

10.

12 ÷ 6 =

45 ÷ 9 =

90 ÷ 9 =

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 83

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Check Multiplication and Division Practice using multiplication to check your division skills.

6 7 42 → 7 × 6 = 42

)

Directions: Divide, then write a multiplication sentence to check your work. a

1.

2.

3.

4.

5.

6.

7.

8.

b

c

3 18

)

7 42

)

4 16

6 48

)

8 32

)

2 18

)

9 81

)

5 35

3 15

)

7 63

)

6 36

2 16

)

4 32

)

10 80

8 72

)

5 45

)

4 28

7 49

)

9 54

)

3 27

)

8 64

)

9 72

10 50

6 30

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

)

)

)

)

)

)

)

)

Date 84

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Divide 2 Digits by 1 Digit Time to put those skills into action.

Directions: Divide. a

1.

2.

3.

4.

5.

6.

7.

€

8.

b

c

d

)

9 18

6 24

)

4 32

)

18

)

8 64

)

2 16

5 45

)

4 20

6 48

)

3 15

7 63

)

4 16

)

8 56

2 14

)

5 20

)

)

3 30

)

6 42

5 40

)

6 12

)

)

2 10

)

9 27

)

9 72

)

3 24

7 49

4 36

6 36

)

Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

)

)

)

3 18

)

9 54

5 10

)

6 30

)

3 12

)

8 72

)

4 24

39

)

4 12

)

5 25

)

3 21

)

2 18

)

5 35

)

2 12

Name €

e

)

)

)

)

) )

Date 85

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Divide 2 Digits by 1 Digit As the dividend gets larger, you can use this technique. 14 6 84 −60 24 −24 0

)

Directions: Divide. a

b

d

e

)

8 96

)

2 58

)

5 80

)

6 72

3 93

)

4 76

)

7 91

)

2 84

)

5 65

6 84

)

7 98

)

3 63

)

8 88

)

4 96

7 84

)

2 36

)

4 64

)

3 57

)

5 95

)

7 77

)

5 70

)

2 92

)

6 66

1.

4 72

2.

3.

4.

5.

4 52

Name €

c

Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

)

)

)

)

)

Date 86

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Divide 3 Digits by 1 Digit You can use the same technique with a 3-digit dividend. 62 4 248 −240 8 −8 0

)

Directions: Divide. a

b

c

d

e

)

3 249

)

5 250

)

2 126

)

5 345

)

8 688

)

3 147

)

3 255

)

4 236

)

5 415

)

7 574

)

2 192

)

6 438

)

8 736

)

4 384

)

5 140

)

7 217

)

9 279

)

2 118

)

4 328

)

2 174

1.

8 168

2.

4 324

3.

6 426

4.

3 168

5.

9 846

Name €

Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

)

) )

)

)

Date 87

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Divide 3 Digits by 1 Digit In this case the quotient has 3 digits too. 124 7 868 −700 168 −140 28 −28 0

)

Directions: Divide. a

b

c

d

e

1.

4 632

)

8 872

)

2 736

)

3 852

)

6 924

2.

5 685

)

9 963

)

7 945

)

4 576

)

3 645

3.

6 762

)

8 912

)

2 588

)

5 830

)

6 876

4.

7 973

)

4 856

)

9 981

)

3 567

)

2 926

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

)

)

)

)

Date 88

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Divide 4 Digits by 1 Digit Now divide with a 4-digit dividend. 757 3 2271 −2100 171 −150 21 −21 0

)

Directions: Divide. a

b

c

d

e

1.

6 1476

)

2 1738

)

5 4315

)

4 2156

)

3 2589

2.

4 3216

)

6 5310

)

8 1160

)

2 1562

)

7 6566

3.

5 3170

)

9 8631

)

3 1155

)

4 2712

)

2 1334

4.

6 5298

)

7 4459

)

2 1854

)

8 6736

)

3 2685

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

)

)

)

)

Date 89

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Divide 4 Digits by 1 Digit Excellent work! Keep it up. 1537 5 7685 −5000 2685 −2500 185 −150 35 −35 0

)

Directions: Divide. a

b

c

d

e

1.

6 8574

)

2 5742

)

4 7216

)

3 8538

)

7 9541

2.

5 7105

)

8 9792

)

6 7548

)

9 9063

)

4 6196

3.

2 9158

)

3 7548

)

5 6210

)

8 9488

)

6 9156

4.

4 5948

)

9 9585

)

2 7656

)

5 8745

)

3 9561

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

)

)

)

)

Date 90

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Practice Mixed Division Let’s bring it all together with some practice.

Directions: Divide. a

b

c

)

36

)

5 15

)

19

)

10 30

4 32

)

6 126

)

8 48

7 91

)

3 252

)

9 396

)

5 725

)

2 942

)

3 471

)

6 2154

1.

8 24

2.

3 27

3.

4.

5.

8 432

6.

9 927

)

)

d

e

)

)

112

3 18

7 35

)

9 63

)

)

)

7 364

5 65

)

)

10 60

)

6 78

)

7 525

)

8 952

)

)

4 336

)

)

2 1724

)

€

Name €

Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 91

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Practice Mixed Division Looks like division is right up your alley!

Directions: Divide. a

b

c

d

1.

2 56

)

5 85

)

3 72

)

7 98

2.

6 564

)

8 96

)

2 246

)

5 615

3.

4 592

)

5 750

)

7 504

)

2 932

4.

3 522

)

9 6741

)

8 920

)

4 748

5.

7 3311

)

6 852

)

3 4110

)

4 936

6.

2 7616

)

9 2412

)

8 9544

)

3 7038

e

)

4 64

)

)

3 99

)

6 444

)

2 1358

)

5 4135

)

7 5516

)

) )

)

)

€

Name €

Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 92

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Solve Word Problems When you use multiplication and division to solve word problems, just look for the key words that tell you which to use.

Directions: Solve. 1. Heidi has 7 flower baskets. She would like to put 12 dandelions in each basket. How many dandelions will she have to pick in all?

2. Frankie has 64 marbles and 8 bags. If he separates the marbles equally between the bags, how many marbles will be in each bag?

3. The Corner Store is open 11 hours a day, 7 days a week. How many hours is it open per week?

4. Kwan is participating in a walk-a-thon in which he has to walk 3 miles a day for a month to complete his goal. If there are 31 days in the month, how many miles will he need to walk in order to reach his goal?

5. Vanessa needs 56 beads to make some necklaces. If the beads come in bags of 7 beads, how many bags will she need?

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 93

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Solve Word Problems Here are more word problems to make you a pro!

Directions: Solve. 1. The school library just got a new bookcase that has 9 shelves. If the librarian wants to put 126 books in the bookcase, how many books should he put on each shelf?

2. For 5 nights in a row the play sold out. If there are 214 seats in the theater, how many tickets were sold over the 5 nights?

3. Amir bought 8 boxes of crayons with 36 crayons in a box. How many did he buy in all?

4. Taheesha, June, Mike, and Jacob are driving 348 miles to New York City. If they split up the driving equally among them, how much will each of them have to drive?

5. Bliss is excited to read her new book. It is 234 pages long. If she wants to finish reading the book in 6 days, how many pages will she have to read each day?

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 94

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Review Multiplication and Division It’s review time again. Let’s see how quickly you can zip through these problems.

Directions: Solve. a

b

c

d

e

1.

9 ×7

24 × 2

7 42

)

5 35

)

10 × 9

2.

1 35

)

13 × 3

32 × 4

9 81

)

6 54

3.

41 × 5

7 147

)

4 48

)

17 ×1

422 × 3

4.

6 252

)

52 × 4

3 75

)

633 × 3

8 184

5.

2 734

)

9 198

)

543 × 2

704 × 2

7 259

6.

301 × 9

8, 214 × 2

5 145

832 × 3

6 2706

)

)

)

)

)

€ Name €

Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 95

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Review Multiplication and Division One more round of multiplication and division.

Directions: Solve.

a

b

c

d

e

1.

5 65

73 × 6

47 × 8

2 52

9 72

2.

631 × 7

5 435

)

495 × 2

153 × 9

3 654

3.

256 × 6

395 × 3

7 679

4.

8 672

588 × 4

5.

927 × 2

6.

6 3432

)

)

)

€

€

)

)

)

9 288

307 × 5

2 3412

)

6, 034 × 3

7 518

5 425

2, 762 × 8

453 × 6

7 8330

7, 034 × 5

9 1575

)

)

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

)

)

) )

)

4, 281 × 4

3 7401

Date 96

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Count and Write Money Learn how to count money so that you can keep good track of yours! = = = =

1 1 1 1

penny = 1¢ = $0.01 › count by 1s nickel = 5¢ = $0.05 › count by 5s dime = 10¢ = $0.10 › count by 10s quarter = 25¢ = $0.25 › count by 25s

Directions: Write how much money is shown. a

b

1. $0.05

$0.10

$0.15

$0.16

2.

Directions: Write how much money is shown.

3.

4.

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 97

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Count and Write Money Now we’re getting into the big bucks.

= 1 dollar = $1.00

= 10 dollars = $10.00

= 5 dollars = $5.00

= 20 dollars = $20.00

Directions: Write how much money is shown. a

b

1.

2.

3.

Directions: List the bills and coins you would need to buy these items. 4.

$8.43

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

$24.30

Date 98

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Add and Subtract Money Now we’re ready to start buying.

Jana bought a hat for $6.00 and a scarf for $11.50. How much did she spend? $6.00 +$11.50 $17.50 Directions: Calculate how much it would cost to buy the following items. Remember to line up the decimal points. $7.00

$14.00

a

$9.50

b

1. A bear and a monkey

2 bears

2. An elephant and a monkey

2 monkeys

Directions: Pretend you have $29.50 in your pocket. Calculate how much you would have left if you bought the following items. a

b

3. An elephant

A monkey

4. A bear

2 monkeys

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 99

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Add and Subtract Money Sometimes you have to regroup when you add or subtract money.

Ori bought a plant for $6.35 and a watering can for $8.75. How much did he spend? 1 1 $ 6 . 35 + $ 8 .75 $15 .10 Directions: Calculate how much the following items would cost.

$8.55

$.60

$17.70

a

$3.65

b

1. A robot and a computer

A yo-yo and a pack of gum

2. A pack of gum, a computer, and a robot

2 yo-yos and a robot

Directions: Now pretend you have $25.50 in your pocket. Calculate how much you would have left over if you bought the following items. a

b

3. A computer

A pack of gum

4. A robot

A yo-yo and a pack of gum

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 100

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Multiply and Divide Money When you multiply and divide with money, remember to place the decimal point correctly. $1.32 × 3 6 90 +300 $3.96

Ali bought 3 bags of candy for $1.32 each. How much did he spend?

Directions: Multiply to figure out the total cost. Chocolates

Jelly Beans

$2.22

Candy Bears

Gum Balls

$1.30

a

$.44

$3.12

b

1. 2 bags of gumballs

3 bags of jelly beans

2. 4 bags of chocolates

3 bags of candy bears

Directions: Divide to figure out how much a bag would cost per person. a

b

3. A bag of jelly beans for 5 people

A bag of candy bears for 8 people

4. A bag of chocolates for 6 people

A bag of gumballs for 4 people

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 101

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Multiply and Divide Money Remember to keep an eye on those decimal points.

Directions: Solve. a

b

c

d

e

1.

$3.45 × 6

$4.73 × 4

$6.75 × 7

$5.61 × 3

$3.96 × 2

2.

$7.63 × 5

$5.24 × 8

$8.44 × 9

$2.67 × 4

$5.88 × 6

3.

$16.43 × 2

$21.52 × 7

$17.40 × 3

$36.21 × 5

$24.35 × 8

4.

6 $3.72

5.

8 $5.92

6.

2 $17.04

)

5 $8.45

)

2 $4.56

)

7 $2.66

)

4 $23.12

)

4 $7.04

)

9 $6.48

)

3 $40.71

)

6 $9.06

)

7 $37.66

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

)

3 $5.61

)

)

5 $7.35

)

8 $13.28

)

)

Date 102

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Solve Word Problems Use these word problems to practice for real-life situations.

Directions: Solve using addition or subtraction.

1. Zarina had $5.46 in her pocket when she left home, but now she has only $3.31. How much did she spend?

2. Dr. Moreira went out to lunch with his son. He had a hamburger for $4.99, and his son had a hotdog for $3.59. How much did they spend on lunch?

3. Alexander bought a shirt and a pair of pants for $15.60. If the pants cost $7.30, how much did the shirt cost?

4. Kalila works at a restaurant. She made $24.00 in tips on Friday night and $35.00 in tips on Saturday night. Between the two nights, how much did she earn in tips?

5. In preparation for the party, Amir bought the following items: candles for $1.59, balloons for $3.45, and favors for $6.50. How much did he spend?

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 103

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Solve Word Problems Here are some money problems with multiplication and division.

Directions: Solve using multiplication or division.

1. Keisha, Aaron, Phillip, and Omar were given a $25.00 reward for finding the lost dog. How much did each of them make?

2. Florencia is going to be paid $9.50 per day for feeding her neighbor’s cat. If she takes care of the cat for 6 days, how much will she make?

3. Selima wants to send postcards to 4 of her friends. If it costs $0.26 to send one, how much will it cost her to send all 4?

4. Five friends went out to dinner. The bill was $27.35. If they split the bill evenly among the five of them, how much will each person owe?

5. At the gas station, the gas is $1.82 per gallon. How much will 7 gallons cost?

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 104

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Review Money Time to practice those money skills.

Directions: Solve. a

b

c

d

e

1.

$6.31 +$2.54

6 $5.52

$12.39 −$1.07

$3.44 × 7

$8.23 +$7.36

2.

$9.46 +$7.42

$4.73 × 4

$2.88 +$7.34

$23.05 −$2.54

3 $8.58

3.

$6.24 × 5

$15.62 −$11.70

7 $4.62

$8.54 −$3.92

$6.07 × 8

4.

$9.44 +$3.27

2 $7.84

$4.85 × 4

$24.35 −$4.99

5 $6.20

5.

$7.36 −$5.42

$8.27 +$3.56

9 $7.65

$4.79 × 7

$6.48 +$11.26

6.

4 $7.36

$2.45 × 9

$18.23 −$8.50

$2.76 +$9.44

$9.46 +$9.37

)

)

)

)

)

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

)

)

Date 105

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Review Money Money, money, and more money!

Directions: Solve. a

b

c

1.

4 $6.32

$9.55 −$7.62

$5.63 +$6.41

2.

$11.26 +$ 4.37

$9.43 × 7

3.

$11.47 × 2

4.

)

e

)

$8.45 × 5

6 $9.84

8 $9.28

$7.94 +$3.27

$17.83 −$ 7.56

$8.07 −$6.13

$7.13 −$6.99

9 $7.38

$4.35 −$4.27

5 $14.35

$9.26 × 3

$7.35 −$5.46

$ 7.33 +$12.84

$5.93 × 9

5.

$23.51 − $ 2.60

$6.97 +$8.46

3 $19.05

$11.52 +$11.64

$13.74 × 5

6.

$25.03 × 7

$26.13 −$ 7.54

$15.27 +$ 8.76

2 $15.26

)

)

)

Name €

d

Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

)

)

$34.20 −$16.17

Date 106

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Write Number Sentences A number sentence has two equal sides.

Directions: Complete the number sentence. a

+ 7 = 10

1.

= 16

2.

11+

3.

12 − 4 =

= 24

5.

8×

6.

12 × 5 =

8.

24 ÷

9.

4

10.

27

11. 12.

=8

=3 4 = 16

3+ 9 =

12 + 10 =

+1= 9

10 −

=3

14 −

=6

7− 6 =

4× 4 =

× 5 = 35

× 5 = 45

÷7= 7

7.

6+

− 6 =1

−3= 9

4.

c

b

63 ÷

=7

8×

= 40

8÷ 2 =

36 ÷ 3 =

÷ 10 = 4

4

4=0

4

4 =1

9=3

55

10 = 45

8

9 = 17

6

5 = 30

12

4 = 16

10

6=4

13

3 = 39

27

6 = 21

7

6 = 42

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 107

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Describe Patterns What’s the rule for the pattern?

4, 8, 12, 16, 20 4 + 4 = 8, 8 + 4 = 12, 12 + 4 = 16, 8 + 4 = 16, 16 + 4 = 20 The rule is "add 4." 4 is added to each number to get the next number. Directions: Write the rule for the pattern. a

b

1. 3, 6, 9, 12, 15, 18

50, 44, 38, 32, 26

2. 25, 20, 15, 10, 5, 0

90, 100, 110, 120, 130

3. 1, 2, 4, 8, 16, 32

243, 81, 27, 9, 3

4. 10, 10, 11, 13, 16, 20

2, 8, 32, 128, 512

5. 100, 80, 60, 40, 20

36, 37, 39, 40, 42, 43

6. 1, 3, 9, 27, 81

14, 14, 13, 11, 8, 4

7. 20, 23, 27, 30, 34

1,024, 256, 64, 16, 4

8. 48, 24, 12, 6, 3

0, 100, 200, 300, 400

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 108

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Complete Patterns You can figure out the rule for a pattern, then complete it.

, 12, 18,

, 30,

, 42,

Rule: add 6. 6, 12, 18, 24, 30, 36, 42, 48

Directions: Complete the pattern. 1. 10, 2. 0, 3. 4. 64, 5. 30, 29, 6. 1, 4,

, 16, 19, , 14, 21, , 100, 150, , 16, 8,

, 25, 28, , 35,

, 49

, 250, ,

, 350 ,1

, 24,

, 15, 9,

, 16, 25,

, 49,

7. Zarina is doing laps around the track. She runs for 3 laps then walks for 4 laps. Figure out how many laps she did by filling in the pattern below. 3, , , , , , , , , Run Walk Run Walk Run Walk Run Walk Run Walk = Total 8. Classes at Desmond’s school run for 55 minutes with a 5-minute break in between. Write the school schedule for when one class ends and the next begins. 9:30, , , , , , , , , , Begin End Begin End Begin End Begin End Begin End

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 109

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Write Equations Equation is another word for number sentence. Equations have two equal sides. 10 minus a number equals 5: 10 − n = 5 A number divided by 2 equals 4: n ÷ 2 = 4 Directions: Write equations. Use n to stand for the missing number. a

b

1. 3 less than a number is 5:

The sum of 8 and a number is 12:

2. A number times 6 is 36:

24 divided by a number is 3:

3. The product of 4 and a number

The difference between 10 and another

is 28:

number is 5:

4. 3 more than a number is the same as

2 less than twice a number is 8:

2 + 5: 5. 12 plus a number is 15:

10 times a number is 50:

6. 7 subtracted from a number is 7:

A number divided by 7 is 7:

7. A number multiplied by 12 is 60:

The sum if 6 and a number is the same as the product of 5 and 2:

8. 6 less than 11 + 9 is a number:

4 more than a number divided by 2 is 7:

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 110

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Solve Equations To solve an equation, get the missing number alone on one side.

One Step Solve: n + 7 = 10 Subtract 7 from both sides. n + 7 − 7 = 10 − 7 n = 10 − 7 n=3

Two Steps Solve: 8 + n − 5 =14 n + 3 = 14 Subtract 3 from both sides. n + 3 − 3 = 14 − 3 n = 11

Directions: Solve for n. a

b

c

1.

n+4=9

n + 7 = 19

n-6=4

2.

n + 4 = 10

n+7=7

9 + n = 14

3.

n + 7 = 13

20 + n = 12

n + 26 = 30

4.

n - 8 = 10

16 - n = 7

11 + n = 21

5.

25 - n = 20

n-5=4

3-2=n

6.

14 + n = 14

n+3=7+5

n - 12 = 21

7.

n + 8 = 10 + 8

n + 6 - 4 = 14

8-n+5=6

8.

5+n=2+6

n+4=3+3

n + 1 = 10 - 2

9.

11 - n = 7 - 3

n - 6 = 12 + 4

7 + n = 15 - 3

14 + n - 3 = 17

18 - n = 17 - 3

20 - 5 + n = 23

10. Name

Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 111

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Solve Equations To solve equations with multiplication, use division.To solve equations with division, use multiplication. One Step Solve: n ÷ 8 = 6 Multiply both sides by 8. n÷8×8 =6×8 n=6×8 n = 48

Combine Terms Solve: 2n + 3n = 10 5n = 10 Divide both sides by 5. 5n ÷ 5 = 10 ÷ 5 n=2

Directions: Solve for n. a

b

c

1.

3n = 9

5n = 20

n÷5=5

2.

6n = 36

n÷7 =6

3.

7 n = 28

n =2 3 n÷9= 4

4.

n =4 4

8n = 56

n ÷ 3 = 10

5.

5n = 25

4n = 48

6.

2n + 2 = 8

n =3 6 3n +1 = 10

n÷9=7

7.

4n − 8 = 8

5n + 3 = 18

3n + n = 24

8.

n ÷ 7 = 11

2n + 9 = 13

6 + 3n = 27

9.

2n + n = 9

4n − n = 6

n ÷ 3 = 15

4n + 3n = 49

3n +1 = 2n + 6

4n − 4 = 3n + 3

10. Name

Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

2n = 10

Date 112

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Write Equations You can write a number sentence before you solve an equation. Directions: Write a number sentence using n for the missing number. 1. Talia had some crayons, but she used up 7. She has 18 crayons now. How many did she start with?

2. There were 15 birds sitting on a wire. Some more birds arrived and now there are 25. How many more birds arrived?

3. A flower grew 10 centimeters in a week. Now it is 30 centimeters high. How high was it a week ago?

4. Simon checked out many books from the library, but he returned 7. Now he has 13 library books at home. How many did he check out originally?

5. Tracy read 2 times as many pages as Liz did. If Tracy read 12 pages, how many pages did Liz read?

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 113

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Review Equations Here’s a chance to show what you know about patterns and equations.

Directions: Fill in the missing numbers. a

1. 1, 2. 4, 8, 3. 1,

b

,100, , , 5,

, 10,000, 100,000

2,

,

, 20, 24

6, 12, 18, 24,

, 9, 11

9,

,

, 8, 10, 12 , , 36, 45, 54

Directions: Complete the number sentence. a

b

c

4.

16168 =8 2= 2

24246 =6 30 = 30

49 497 =77= 7

5.

56567 =7 8= 8

64648 =8 8= 8

72 728 =89= 9

6.

45459 =9 5= 5

36362 =2 72 = 72

48 483 =345 = 45

Directions: Solve for n. a

b

c

7.

2n − 1 = 7

n+5=5

3n = 36

8.

n =2 2

10n +1 = 11

10n −1 = 9

9.

7 n = 49

16 − n = 12

2n + n = 6

Directions: Write an equation to solve. 10. After 8 fish were moved to another tank, there were 7 left. How many fish were in the tank to start? 11. Jim is one year older than twice Ken’s age. If Jim is 15, how old is Ken? Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 114

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Understand Time It’s time to learn about time.

60 seconds = 1 minute 60 minutes = I hour 24 hours = 1 day 7 days = 1 week

11 12 1 10

2

9

3

8

4 7

5

6

4:10 or 10 minutes after 4

Directions: Fill in the blank. a

b

11 12 1 10

11 12 1

2

9

10

3

8

4 7

6

2

9

3

8

5

4 7

6

5

1. 7:15 means

minutes after

3:45 means

minutes before

2. 9:05 means

minutes after

6:50 means

minutes before

8:17 means

minutes after

3. 10:35 means 4. 48 hours =

minutes before days

180 seconds =

days = 2 weeks

5.

minutes

hours = 3 days

Directions: Use the calendar to answer the questions. NOVEMBER Sun

a

Mon

Tue

Wed

1

2

Thur 3

Fri 4

Sat 5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

6. How many days are there in the month

b

The first Sunday is what date?

of November? 7. What day of the week is the 14th?

How many Thursdays are there in November?

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 115

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Read Time On a clock with hands, the darker lines stand for 5 minutes, and the lighter ones stand for 1 minute. 123 4

11 12 1 10

Digital

56

7

8

2

9

9

Minutes

10

Analog

3

8

4 7

6

Hours

5

Directions: Write in the time shown on the digital clock. a

1.

11 12 1 3 4

8

2.

11 12 1 2

10 9 7 6

7 6

3 4

7 6

5

3 4 7 6

5

11 12 1 2

8

3 4

8

5

10 9

2

10 9

11 12 1 2

8

3 4

8

11 12 1

11 12 1 2

10 9

5

10 9 7 6

c

b

2

10 9

3 4

8

5

7 6

5

Directions: Draw the hands to show the time given on the digital clock. a

c

b

3. 11 12 1

11 12 1 2

10 9

3 4

8 7 6

3 4

8

5

11 12 1 2

10 9 7 6

2

10 9

3 4

8

5

7 6

5

4. 11 12 1

11 12 1 2

10 9

3 4

8 7 6

5

3 4

8 7 6

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

11 12 1 2

10 9 5

2

10 9

3 4

8 7 6

5

Date 116

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Find Time Intervals The clock hands move as time changes. 9:25

25 minutes later, 9:50

11 12 1 2

10 9

3 4

8 7 6

11 12 1 2

10 9

3 4

8 7 6

5

5

Directions: Write the new time. a 11 12 1

1.

11 12 1 2

10 9

3 4

8 7 6

7 6

3 4 7 6

7 6

30 minutes later

5

3 4 7 6

1 hour later

5

10 minutes ago

11 12 1 2

8

3 4

8

5

10 9

2

10 9

11 12 1 2

8

3 4

8

11 12 1 10 9

11 12 1 2

10 9

5

20 minutes later 2.

c

b

2

10 9

3 4

8

5

7 6

6 minutes ago

5

2 hours ago

Directions: Draw the hands to show the new time. a

3.

11 12 1

11 12 1 2

10 9

3 4

8 7 6

7 6

3 4 7 6

7 6

2 minutes after 7:43

5

20 minutes after 2:07

3 4 7 6

5

35 minutes before 11:45

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

5

1 hour before 3:25 11 12 1

2

8

3 4

8

5

10 9

2

10 9

11 12 1 2

8

3 4

8

11 12 1 10 9

11 12 1 2

10 9

5

30 minutes after 9:40 4.

c

b

2

10 9

3 4

8 7 6

5

3 hours after 6:15 Date

117

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Find Time Intervals Fredrick started his homework at 7:30 and finished at 9:15. How long did it take him?

11 12 1

11 12 1 2

10 9

3 4

8 7 6

5

2

10 9

3 4

8 7 6

1 hour and 45 minutes

5

Directions: How long did it take? 1. Kelsey started her bike ride at 3:20 and finished at 4:00. 2. It started to rain at 5:30 and stopped raining at 7:05. 3. The movie began at 6:15 and ended at 8:50. 4. Sabrina started mowing the lawn at 12:20 and finished at 1:05. 5. The plane took off at 10:10 and landed at 11:11. 6. The soccer game began at 2:10 and ended at 4:15. 7. Ashoke got to work at 9:00 and left at 4:00. 8. Briand started the 5K race at 11:02 and finished at 11:23. 9. Kent got to the restaurant at 7:30 and left at 9:08. 10. The play starts at 5:00 and ends at 7:15. 11. Elaine started her homework at 3:10 and finished at 5:00. 12. The sun set at 6:25 and rose at 5:45. Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 118

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Add Intervals of Time When you add time, think 60 minutes = 1 hour.

Sarah spent 45 minutes walking her dog on Monday and 35 minutes walking her dog on Tuesday. How much time did she spend walking her dog over the two days? 45 minutes + 35 minutes = 80 minutes or 1 hour and 20 minutes

Directions: Add the time intervals to solve. 1. Cameron stirred the soup for 15 minutes and his mom stirred it for 25 minutes.Together how long did they stir the soup?

2. Tyler has guitar on Mondays for 50 minutes and piano on Thursdays for 50 minutes. How much time does he spend in lessons each week?

3. Genevieve painted for 2 hours yesterday and for 1 hour and 20 minutes today. How much time did she spend working on her painting?

4. In the morning it takes Gloria 10 minutes to take a shower, 10 minutes to put on her clothes, and 15 minutes to eat breakfast. How long does it take her to get ready for school?

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 119

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Duration Thinking about how long it takes to do something helps you understand time.

Directions: Circle the unit of time that fits best. 1. How long does it take to eat dinner? minutes hours days 2. How long does it take a baby to become an adult? minutes days years 3. How long does it take to count to five? seconds hours days 4. How long does it take to put on your clothes? minutes hours months 5. How long does it take to grow a plant? seconds minutes months 6. How long does it take to get from first grade to college? days months years 7. How long does it take to tell your mom you love her? seconds hours days 8. How long does it take to write a letter? minutes days years 9. How long does it take to peel an orange?? minutes weeks days Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 120

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Find Lengths (Customary) In the U.S. we usually use the Customary System.We measure length using inches, feet, yards, and miles.

Directions: Fill in the blank to describe the length or distance. a

b

1. A book

A football field

2. From the U.S. to France

A car

3. From New York to Chicago

A pizza

4. A ladder

A tennis court

Directions: Circle the number that best estimates the measurement. a

b

5. The height of a dog

The width of a classroom

2 inches 2 feet 20 feet

5 inches 5 feet 5 yards

6. The distance from San Francisco to Los Angeles

The length of a piece of paper 11 inches 11 feet 11 yards

4 yards 4 miles 400 miles 7. The distance Mike threw the football 2 feet 20 yards 2 miles

The length of a paper clip 1 inch 10 inches 1 foot

8. The distance from Miami to Washington, D.C.

The length of a desk 4 inches 4 feet 4 yards

10 inches 10 feet 1,000 miles

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 121

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Find Lengths (Customary) Now let’s get out those rulers.

1

2

3

4

5

Directions: Use a ruler to measure each object in inches. 1.

2.

3. CRAYON

4.

5.

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 122

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Convert Lengths Use division to convert lengths.

12 inches (in) = 1 foot (ft) 3 feet (ft) = 1 yard (yd) 5,280 feet (ft) = 1 mile 50 inches = 4 feet 2 inches Remember: 12 inches = 1 foot, so divide 50 by 12 Directions: Use the information above to convert. a

b

1. 24 in =

ft

2. 30 in =

ft

3. 5,280 ft =

17 ft = 9 ft =

in mile

yd

ft

yd

48 in =

ft

4. 18 ft =

yd

16 in =

ft

in

5. 60 in =

ft

10 ft =

yd

ft

6. 63 in =

ft

15 ft =

yd

7. 36 in =

ft

52 in =

ft

8. 19 ft =

yd

36 in =

yd

27 ft =

yd

20 ft =

yd

9. 10,560 ft = 10. 73 in =

in

ft mi

ft

in

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

in

ft

Date 123

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Add and Convert Lengths After you add lengths, sometimes you have to convert.

The skirt was 1 foot 8 inches long, but Jana added 6 more inches. Now how long is it? 1 foot 8 inches + 6 inches = 1 foot 14 inches = 2 feet 2 inches

Directions: Add the measurements, then convert them. 1. When Francine was 10 she was 4 feet 7 inches tall. Four years later she had grown 8 more inches. How tall was she at 14?

2. Adrian’s garden was 4 yards 2 feet long, and he added another 1 yard 2 feet to it. How many yards and feet long was it then?

3. The barn was 10 feet 4 inches long, but Pete decided to extend it by 2 feet 8 inches. How long was it then?

4. Lyle walked 2,200 feet and Alexa walked 3,080 feet.Together, how far did they walk?

Directions: Add, then convert. a

b

5. 7 ft 3 in + 9 in =

10 in + 11 in =

6. 21 ft 2 in + 10 in =

3 yd 2 ft + 2 ft =

7. 10 ft 3 in + 12 ft 4 in =

6 ft 7 in + 5 ft 9 in =

8. 5 yd 2 ft + 7 yd 1 ft =

21 ft 4 in + 12 ft 10 in =

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 124

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Find Lengths (Metric) The metric system is used all over the world to measure length in centimeters (cm), meters (m), and kilometers (km).

Directions: Fill in the blank with centimeters, meters, or kilometers to describe the length or distance. a

b

1. A marker

From your town to the next

2. The height of a house

The length of your finger

3. From Africa to Asia

The length of a ship

4. The width of a computer screen

The width of your bedroom

Directions: Circle the number that best estimates the measurement. a

b

5. The height of a man

The distance from New York to Boston

2 cm 2 m 2 km

35 cm 35 m 350 km

6. The length of a shoe

The height of an office building

20 cm 20 m 2 km

30 cm 30 m 3 km

7. The distance from St. Louis, MO, to Austin,TX

The width of a table 70 cm 70 m 7 km

1,400 cm 1,400 m 1,400 km

8. The length of a parking lot

The length of a foot race

80 cm 80 m 80 km

10 cm 10 m 10 km

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 125

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Find Lengths (Metric) Time to measure in centimeters.

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

Directions: Use a ruler to measure each object in centimeters. 1. LIP GLOSS

CRAYON

2.

3.

4.

5.

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 126

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Convert Lengths Converting metric lengths is simple.

10 millimeters (mm) = 1 centimeter (cm) 100 centimeters (cm) = 1 meter (m) 1,000 meters (m) = 1 kilometer (km) Directions: Use the information above to convert. a

b

1. 2,000 m =

km

50 mm =

cm

2. 800 cm =

m

34 mm =

cm

3. 720 cm =

m

4. 90 mm =

cm

5.

m = 6 km

6.

mm = 30 cm

7. 290 cm = 8.

4,000 m =

km

200 cm =

m

cm = 9 m

m

5,300 m = cm

m

m

cm = 7 m 20 cm cm

cm = 9 m 3 cm

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

km

mm = 5 cm 3 mm

m = 3 km 400 m

9. 290 cm = 10.

cm

mm

233 cm =

m

5,300 m =

km

cm m

Date 127

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Add and Convert Lengths Now let’s add and convert with metric units.

The scarf Ana was making was 1 m 70 cm long. Then she knitted 60 cm more. How long was it then? 1 m 70 cm + 60 cm = 1 m 130 cm = 2 m 30 cm

Directions: Add the measurements, then convert. 1. The tear in Helen’s sock was just 2 cm 7 mm long, but then it ripped 9 mm more. How long is the tear now?

2. The basketball player was 1 m 60 cm tall in high school, but he grew 50 cm. How tall is he now?

3. The road workers fixed 2 km 500 m of the road last year and 3 km 700 m this year. How much of the road did they fix in all?

4. The new addition will increase the length of the house by 4 m 30 cm. If it was 10 m 80 cm long before, how long is it now?

Directions: Add then, convert. a

b

5. 8 m 50 cm + 70 cm =

20 cm 3 mm + 8 mm =

6. 4 km 300 m + 900 m =

13 m 40 cm + 3 m 60 cm =

7. 7 cm 8 mm + 2 cm 6 mm =

8 km 600 m + 4 km 500 m =

8. 21 m 30 cm + 10 m 80 cm =

32 cm 5 mm + 6 cm 7 mm =

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 128

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Understand Perimeter Perimeter is a measure of the distance around an object. 8 ft 3 ft

3 + 8 + 3 + 8 = 22 ft

3 ft 8 ft

Directions: Find the perimeter. Don’t forget to label your answer. 1.

4m 2m

2m

4+2+4+2

m

=

4m

2. 5 in

5 in

=

3 in

3.

6 ft 6 ft

=

6 ft 6 ft

4.

3 cm

3 cm

3 cm

=

3 cm 3 cm

5.

6 mm

8 mm

=

10 mm

4m

6. 2m

2m

=

4m

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 129

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Find Perimeters Sometimes the sides of an object have equal lengths so, they’re not labeled. 8m

These marks tell you which sides are equal. 6 + 8 + 6 + 8 = 28 m

6m

Directions: Find the perimeter. Use the marks to find the lengths of the unlabeled sides. 4 in

1.

in

4+4+4+4+4 =

2.

6 ft

=

3.

7 cm 3 cm

=

4. 9m

5.

=

4 mm 2 mm

=

7 mm 1 in

6.

6 in

=

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 130

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Understand Area To find the area, multiply the length by the width. 6 cm 3 cm

3 x 6 = 18 square centimeters (sq cm)

Directions: Find the area of the shape. Remember to label your answer in square units. 1.

2.

4m

4x4

8 ft 9 ft

3.

sq m

=

=

7 mm

=

2 mm

4.

3 cm

=

5. 24 in

6.

=

60 in

= 2 yd

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 131

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Find Areas Sometimes you have to convert before you find the area.

2 ft 48 in

48 ÷ 12 = 4 Dimensions: 2 ft x 4 ft Area: 2 x 4 = 8 sq ft

Directions: Convert the dimensions and find the area. 1.

30 mm

=

sq cm

=

sq m

=

sq ft

=

sq cm

=

sq ft

=

sq ft

2. 2m 500 cm

3. 36 in 4 ft

4.

60 mm 9 cm

5.

6.

24 in

60 in

2 yd

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 132

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Solve Word Problems Use what you know about perimeter and area to solve these problems.

Directions: Solve by finding the perimeter or area. Drawing a picture may help. 1. Erika and her dad are going to build a fence around her new garden.The dimensions of the garden are 6 m by 8 m. How much fencing should they buy?

2. Calvin walked all the way around the field. If the field is square, and it’s 35 yards long on one side, how far did he walk?

3. Leahann is going to wallpaper one wall of her room that is 7 feet high by 12 feet wide. How many square feet of wallpaper will she need?

4. Heidi is going to cover the front of her textbook with stickers.The book is 9 inches wide and 11 inches long. How many square inches of stickers will she need?

5. Leo is putting a border around the wooden box that he built.The box is 32 cm long and 20 cm wide. How much material does he need to make the border?

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 133

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Solve Word Problems These word problems are a little more tricky—read carefully.

Directions: Solve. Drawing a picture may be helpful. 1. Grandma is making some new curtains for the front window.The window is 6 feet by 7 feet, and she bought 40 square feet of fabric. Did she buy enough to cover the window?

2. The perimeter of a rectangular building is 150 feet. If one side is 50 feet long, how long is the other side?

3. Evelyn ordered 30 square meters of carpeting to put in the living room. If the room is 6 meters long, how wide must it be if she bought exactly the right amount of carpeting?

4. Desmond wants to make two birthday cards out of the same piece of construction paper. If the paper is 20 cm long by 10 cm wide, can he make two cards that are 10 cm square?

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 134

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Review Measurements Review time has arrived.

Directions: Show the time on the digital or analog clock. a

1.

c

b

11 12 1 2

10 9

3 4

8 7 6

5

11 12 1

11 12 1 2

10 9

3 4

8 7 6

2

10 9

3 4

8

5

7 6

5

2. 11 12 1 3 4

8 7 6

3.

11 12 1 2

10 9

7 6

11 12 1 3 4

8 7 6

7 6

5

50 minutes after 8:30

3 4 7 6

5

11 12 1 2

8

3 4

8

5

10 9

2

10 9

11 12 1 2

10 9

3 4

8

5

11 12 1 2

10 9

5

45 minutes before 7:20

2

10 9

3 4

8 7 6

5

3 hours after 10:55

Directions: Answer the questions. 4. The Keegans got in the car at 7:15 in the morning and arrived at Aunt Jenny’s house at 2:00 in the afternoon. How long did the trip take?

5. Juanita read for 2 hours and 20 minutes and Tina read for 1 hour and 45 minutes. How long did they read altogether? Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 135

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Review Measurements One more look at dimensions.

Directions: Find the dimensions of each shape. 1.

Perimeter

=

ft

Area

=

sq ft

Perimeter

=

m

Area

=

sq m

Perimeter

=

ft

48 in

Area

=

sq ft

50 mm

Perimeter

=

cm

Area

=

sq cm

24 in

2.

700 cm 300 cm

3.

36 in

4.

Directions: Solve. Draw a picture if necessary. 5. The perimeter of a rectangular room is 50 feet. If one side is 11 feet long, how long is the other? 6. Fran bought 90 square meters of patio carpet. If the patio is 12 meters by 8 meters, did she buy enough? 7. Ethan and Marie are going to put in a new carpet on the floor of their bedroom and a new border around the base of the wall. If the room is 10 feet by 9 feet, how much carpeting and how much border material will they need?

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 136

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Students

Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

num ber sen se add pp. itio 6np 22 p. 2 sub 3 -3 tra 5 ctio np add p. 3 itio 6na 49 nd fra sub ctio tra ns ctio pp. np mu 55 p. 5 ltip -6 0lica 4 54 tio np div isio p. 6 np 5p. 8 79 mu 0ltip 9 2 lica tio na op era nd tio div ns isio wit equ np hd p. 9 atio eci 3ns ma 96 p l p s me . 10 p p. 9 asu 7 7 rem 114 -1 ent 06 pp. 115 -1 36

Scope and Sequence

137

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Answer Key PAGE

1. 2. 3. 4.

PAGE

1. 2. 3. 4. 5. 6.

PAGE

5. 6. 7. 8. 9. 10.

735 399 4,214 5,608 48 941

7. 8. 9. 10. 11. 12.

thousands, tens 0 2 tens 2 hundreds, tens

8

452 7,629 3,003 2,055 4,213 825 641 1,050 2,300 8,520 2,000+400+90+1

PAGE

948 406 880 9,020 125 5,023

7

5 9 1 4 tens ones

PAGE

1. 2. 3. 4. 5. 6.

6

416 166 332 503

7. 8. 9. 10. 11. 12.

900+5 20+6 9,000+200+4 2,000+200+10+2 4,000+1 500+90+9

10

1. 29 is between 20 and 30 and rounds to 30. 2. 45 is between 40 and 50 and rounds to 50. 3. 63 is between 60 and 70 and rounds to 60. 4. 142 is between 140 and 150 and rounds to 140. 5. 756 is between 750 and 760 and rounds to 760. 6. 50 60 100 30 7. 20 20 80 60 8. 70 30 80 90 9. 120 270 390 450 10. 360 520 900 970 PAGE

1. 2. 3. 4. 5. 6. 7. 8. 9. 10.

11

800 100 2,000 300 1,200 4,300 2,000 13,410 700 1,000

1,300 9,300 800 5,600 900 1,000

6,900 600 4,900 800 6,700 300

11. 8,000

500 5,300 800 2,500 3,300 1,900

12

PAGE

seven hundred thirty-two; 700+30+2 905; 900+5 two hundred thirty-nine; 239 2,056; 2,000+50+6 9 8 thousands ones 193; 432; 455 162; 261; 621 905; 1,052; 1,205 432; 433; 623 679; 699; 701 143; 271; 1,003 5,668; 6,212; 7,012 909; 990; 999

PAGE

1/8 1/2

3/8 7/10

< > 1/4><2/4 4. 5/6 5. 3/6 6. 5/9

PAGE

0.5 0.4 0.2 0.1

> < 3/6<6/9

< > 1/2>3/7

0.8 0.2 0.9 0.7

5. 0.6 6. 0.7 7. 0.8

0.3 0.1 1.0

0.23 0.83

0.51 0.4

4.

1. 2. 3. 4. 1. 2. 3. 4. 5.

19

4/10=0.4 75/100=0.75 < <

PAGE

11 10 14 9 11

PAGE

22

0.4 1.0 0.2

20

5/7>4/7 3/8<6/8 3/5>3/6 2/9<3/9 0.4<0.5 0.7>0.1 0.6 6/9 or 2/3

8/10=0.8 2/10=0.2 < >

23 13 12 12 7 11

8 10 6 12 6

12 5 6 12 12

6. 7. 8. 9. 10.

9 4 6 11 8

10 17 18 8 8

7 14 15 16 10

9 15 8 3 16

24

1. 7+3=10 9+2=11 2. 4+8=12 3+6=9 3. 6+(5+2)=6+7=13 9+(7=3)=9+10=19 4. 8+(4+3)=8+7=15 6+(9+1)=6+10=16 5. 5+0=5 0+7=7 10+0=10 PAGE

18

1. 0.35 2. 0.16 3.

PAGE

1. 2. 3. 4. 5.

17

0.3 0.9 0.5 0.4

0.4 8,000+300+50+9 806 0.9 87/100

1/6; 1/4; 1/3 8,999; 9,008; 10,001 3,979; 4,873; 6,214 0.89; 0.9; 0.98 29/100; 0.34; 4/10 6/7; 8/9; 9/10 123; 1,230; 12,230 7/100; 70/100; 77/100 5/8; 5/6; 5/5 0.09; 0.21; 0.4 7.900 2 1/8 8,000 7 0.6 thousands, ones

PAGE

16

1. > 2. > 3. 4/5<7/8 1. 2. 3. 4.

> > 5/8<6/8

15

1. 4/9 2. 1/8 3. 5/7

PAGE

6. 7. 8. 9. 10. 11. 12. 13.

14

1. < 2. < 3. 4/5>2/5

PAGE

21

< < < < > = < < = < > > > < < > = > > < 40+5 53/100 nine-tenths 2/3 481

PAGE

3. 4. 5.

4.

PAGE

1. 2. 3. 4. 5. 6. 7. 8. 9. 10.

1. 68;168; 1,068 2. 0.2; 0.4; 0.9

13

1. 3/4 2. 4/5 3.

PAGE

9

1. > < = > 2. > < < > 3. > > < > 4. < < > < 5. > = < > 6. < < > = Some answers will vary for items 7 - 12. Example answers are listed below. 7. 84 913 12 48 8. 599 16 204 90 9. 30 107 63 56 10. 66 7+7 100 339 11. 13 849 80 16 12. 1,000 16 251 434 PAGE

1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12.

1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12.

12 8 0 9 10 9 15 14 7 6 16 11

PAGE

1. 2. 3. 4. 5.

25 9 11 6 5 17 6 10 11 11 10 14 8

4 7 7 9 9 10 12 14 8 6 7 7

10 12 10 7 5 10 5 12 18 17 4 18

13 2 9 9 11 8 8 15 7 8 8 7

10 13 10 11 12 6 14 10 12 9 12 16

26

17 18 19 28 44 18 59 39 26 25 56 48 19 flowers 39 pieces of fruit

12. 6,460

Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

138

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PAGE

1. 2. 3. 4. 5. 6. 7.

PAGE

1. 2. 3. 4. 5. 6.

1. 2. 3. 4. 5. 6. 7.

72 107 121 102 121 119

72 62 82 96 55 70 96

35 41 52 34 81 55 84

51 97 98 101 87 94

57 84 97 98 103 110

90 95 90 128 121 99

70 91 108 157 141 103

337 633 505 700 547

729 899 785 502 734

849 940 560 752 806

638 782 971 681 971

30 898 679 904 473 985 812 790 705 952 462 979 1,087 1,202 1,224

839 817 936 1,029 884 1,419 1,050

338 669 970 900 980 658 890 971 831 856 864 1,074 1,522 1,906

31 3,955 4,659 8,772 7,581 5,653 1,374 2,671 1,184 4,900 5,440 6,995 6,810 5,814 8,742

7,630 6,450 2,950 6,381 7,399 3,580

PAGE

6,981 6,075 8,558 9,389 7,074 9,408 8,219 7,807 9,516 8,810 8,070 9,571 7,813 12,201

6,986 3,688

1. 2. 3. 4. 5. 6. 7.

9,991 7,812 9,026 9,841 6,612

11,592

8,505 7,406

8,303 17,103

4,686 8,940 2,917 9,873 4,082 1,601 9,660 9,467 4,622 7,920 4,043 6,042 7,323 10,307

1. 2. 3. 4. 5. 6. 7. 8.

PAGE

7,663 1,617 8,516 2,743 2,841 4,023

95 490 705 203 837 3,980 1,025 7. 3,003 9,700 8. 5,128 5,496 1. 2. 3. 4. 5.

5 10 1 2 4

PAGE

37

7,018 2,490 8,209 9,113

PAGE

5,697 6,993 6,175 4,984 7,012 2,987 5,162 6,282

Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

1. 2. 3. 4. 5.

176 113 110 2,265 715 711

402 85 245 181 1,220 7,818

131 113 140 533 3,801 1,539

110 255 274 468 540 1,720

120 140 140 401 369

1 5 7 1 4 10 1 17 13 11 0 9

2 7 1 7 9

6. 7. 8. 9. 10.

3 14 6 7 5

3 5 3 8 7 9 7 7 11 2 10 10

1 4 9 1 1 0 1 3 4 1 17 2

38

12 12 10 23 31 24 40 31 11 31 52 23 21 geese 30 apples

139

26 78 38 87 29 76 89

5 5 16 2 11

1 7 4 16 6

1 12 4 10 3

1 2 6 2 3 8 7 3 10 16 15 9

5 3 1 8 6 4 2 6 11 6 8 1

18 68 89 29 69 58 26

49 59 63 48 88 29 35

40 3+7=10 or 7+3=10 10-3=7 or 10-7=3

6+9=15 or 9+6=15 15-6=9 or 15-9=6

2. 6+6=12 or 12-6=6 7-3=4 or 7-4=3

3+4=7 or 4+3=7 9-1=8 or 9-8=1

1+8=9 or 8+1=9

3. 5+6=11 or 6+5=11 11-5=6 or 11-6=5

3+10=13 or 10+3=13 13-3=10 or 13-10=3

5+9=14 or 9+5=14 14-5=9 or 14-9=5

4. 2+6=8 or 6+2=8 8-2=6 or 8-6=2

6+13=19 or 13+6=19 19-6=13 or 19-13=6

7+8=15 or 8+7=15 15-7=8 or 15-8=7

5. 11+11=22 or15+16=31 or 7+9=16 or 22-11=11 16+15=31 9+7=16 31-15=16 or 16-7=9 or 31-16=15 16-9=7

1. 2. 3. 4. 5. 6. 1. 2. 3. 4. 5. 6. 7. 1. 2. 3. 4. 5. 6. 7.

38 39 100 9 25 29

58 57 67 36 13 25

47 56 57 11 9 28

36 85 83 22 17 65

21 45 5 15 19 20 30

13 16 17 9 9 3 16

9 22 16 6 19 19 29

18 24 9 34 9 38 26

14 19 27 17 27 19 29

237 868 192 94 616 278 508

667 249 103 337 652 571 830

153 476 338 182 624 872 408

377 196 536 777 234 827 174

226 393 515 747 487 696 777

42

23 3 19 23 55 27 14

PAGE

7+18=25 or 18+7=25 25-7=18 or 25-18=7

41

46 62 66 47 28 31

PAGE

6 2 4 4 0 1 11 1 19 13 8 11

56 27 19 68 72 43 54

1. 4+5=9 or 5+4=9 9-4=5 or 9-5=4

PAGE

2 3 3 2 2

39 15 28 58 49 19 61

6. 10+24=34 or 5+14=19 or 24+10=34 14+5=19 34-10=24 or 19-5=14 or 34-24=10 19-14=5

2,120 9,211 4,751 2,856 10,751 7,007 5,070 12,731

36

4 5 6 1 7

1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12.

2,357 5,759

35

1. 2. 3. 4. 5. 6.

PAGE

83 313 658 335 113 7,667

39

15 38 47 28 37 58 89

PAGE

8,840 7,412

34 58 187 92 96 395 465 82 145 192 100 93 760 286 124 586 820 1,548 739 624 6,600 4,987 133 311 500 1,395 7,370 975 546 8,870 733 3,641 6,092 4,991 6,513 2,302 4,631 7,390 13,500 2,245 8,810 13,713 10,503

4,950 3,750

32

1. 6,467 7,652 2. 7,840 4,560 3. 1,835 8,518 4. 3,727 4,714 5. 8,516 10,170 6. 6,301 7,815 7. 5,322 3,231

33

1. 8,087 8,991 2. 7,010 7,105 3. 6,188 7,661 4. 11,598 8,070 5. 6,681 11,107 6. 9,824 9,479 7. 5,504 7,565 PAGE

625 444 988 777 484

1. 1,359 3,303 2. 2,792 4,666 3. 9,453 4,962 4. 8,703 2,962 5. 3,885 9,905 6. 4,423 3,490 7. 7,373 9,472 PAGE

58 92 51 70 91 31 80

29

577 756 483 920 1,241 911 1,252

PAGE

60 83 34 38 84 56 90

28

539 776 855 345 910

PAGE

PAGE

31 51 76 90 42 81 61

78 81 134 119 132 144

PAGE

1. 2. 3. 4. 5.

27

26 42 22 40 33 60 70

43

459 331 832 629 862 381 231

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Answer Key PAGE

1. 2. 3. 4. 5. 6. 7.

44

221 291 108 291 176 219 476

PAGE

35 293 143 145 757 167 288

142 220 213 219 405 87 597

8,412 2,113 1,213 8,061 6,277 8,908 2,534 3,229 6,005 2,574 2,792 1,669 1,749 3,279

2,428 8,149 6,069 5,365 4,180 8,575 5,305 6,079 2,645 7,888 8,577 5,369

5,522 6,101

PAGE

1. 2. 3. 4. 5.

5,802 5,002 7,221 1,019 4,019 4,313

PAGE

6,745 8,879

5,243 3,959

5,066 5,922

7,155 6,185

8,814 3,563

2,276 3,343

35

414

8

219

193

553

759

425

464

78

18

9,374 183

1,272

844

326

154

4,792

1,389

2,744

1,907

6,448

1,049

3,188 1,928

22

43

47

12

229

474

15

10

429

165

406

618

708

289

247

187

Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

PAGE

1. 2. 3. 4. 5. 6. 7.

47

1. 2. 3. 4. 5. 6. 1. 2. 3. 4.

2,449

67 80 887 708 693

88 499 151 749 979

4,137 2,716

202 328 559 643 816

263 122 974 657 814

417 378 573 970 908

51

4/6=2/3 7/7=1 8/12=2/3 8/10=4/5

4/10=2/5 4/8=1/2 3/9=1/3 5/5=1

5/8 4/9 7/10 5/8

7/12 1/7 1/8 2/11

2/4=1/2 4/8=1/2 3/12=1/4 6/8=3/4

2/8=1/4 8/10=4/5 5/10=1/2 3/6=1/2

60

10/12=5/6 2/6=1/3 6/9=2/3 4/12=1/3

PAGE

7/9 5/8 6/7 7/10

59

1/6 1/4 1/3 5/9

61

1. 3/4 of a can 3. 5/7 of the blocks 2. 5/9 of the book 4. 7/12 of the pizza

PAGE

53 86 202 204 996 522

22 132 178 742 442

155 55 23 390 9,412

59 370 275 154 935

287 69 694 1,689 646

15 5,612 902 246 1,918

222 75 5,083 1,252 166

122 390 479 649 7,399

54

55

140

1. 2. 3. 4.

5/7 11/12 5/9 7/8

58

6/8=3/4 9/12=3/4 2/6=1/3 4/12=1/3

PAGE

2/4=1/2 8/12=2/3 4/10=2/5 3/12=1/4

62

1. 1/3 of a jar 4. 2/3 of a pack 2. 2/3 full 5. 4/11 of his money 3. 1/2 of a pizza

3. 45 miles 4. 135 cm

3/4=6/8 1/2=3/6 2/4=4/8 2/3=8/12

1. 2. 3. 4.

2/8=1/4 2/10=1/5 6/9=2/3 8/10=4/5

57

3/4 5/6 9/11 2/3

PAGE

3. 70 apples 4. 101 pages

52

1/3=3/9 1/4=2/8 3/4=9/12 1/2=5/10

PAGE

1. 2. 3. 4.

56

4/6=2/3 3/9=1/3 4/12=1/3 6/12=1/2

PAGE

50

127 69 1,426 528 117 104 1,580 679 3,880 3,306 42 blocks

PAGE

495

4,076 6,773 8,487

1,264 608

1. 2. 3. 4.

PAGE

6,196 1,777 7,628 2,881

12 39 278 81 304 351 69 221 4,597 684 40 birds 35 cards

PAGE

235

PAGE

1. 2. 3. 4.

4,559 8,303 3,318 370

1. 36 feet 2. 40 feet

1,318

8,449 2,128

5,871 8,973

1. 8 people 2. 19 cm

7,886 5,819

547

7,071

49

78 95 127 895 639

PAGE

2,664 1,809

3,202 2,205 182 4,107 1,309 1,819 5,428 1,853 979 2,547 776 1,289 4,769 3,796

79

1. 9 18 2. 366 874 3. 629 274 4. 698 7,278 5. 1,138 297 6. 9,266 5,049 7. 868 8,088 8. 3,928 2,881

4,611 8,620

48

1. 21 19 2. 8 27 3. 93 779 4. 178 124

5. 6,339 6,579 6. 4,554 7,171 7. 4,586 9,049 8. 511 3,516 PAGE

2,475 3,112 3,661 1,458 9,313 7,726 6,368 5,039 3,062 2,659 4,074 5,569 2,089 9,268

47

1. 5,113 1,231 2. 4,103 2,724 3. 2,376 909 4. 583 5,914 5. 4,353 2,788 6. 699 4,365 7. 3,868 2,777 PAGE

226 319 92 395 304 79 388

46

1. 3,521 8,117 2. 7,337 2,134 3. 4,911 1,311 4. 8,525 5,909 5. 6,908 7,877 6. 5,083 1,179 7. 5,785 4,868 PAGE

133 112 138 79 109 187 289

45

1. 1,432 7,332 2. 4,202 5,291 3. 1,665 2,606 4. 7,192 3,204 5. 9,506 1,496 6. 6,451 8,312 7. 4,646 7,577 PAGE

222 211 154 323 672 676 77

5/6=10/12 2/6=3/9 2/5=4/10 1/2=2/4

1. 2. 3. 4. 5.

PAGE

1. 2. 3. 4.

1/6 4/9 2/4=1/2 10/12=5/6 4/8=1/2

3/5>3/9 6/8>8/12 10/12=5/6 2/10 or 0.2

7/8<11/12 2/3=6/9 3/7>3/8 9/10 or 0.9

65

14 24 6. 27 8 7. 10 28 8. 0 18 9. 7x3=21 1x5=5 10.

PAGE

1. 2. 3. 4.

3/10 8/12=2/3 2/8=1/4 3/10 5/6

64

6/10>3/6 1/6<1/4 8/10>8/11 6/10 or 0.6

PAGE

1. 2. 3. 4. 5.

63

4/7 3/5 6/11 2/3 6/9=2/3

8 0 3 0

4x5=20 9x2=18 8x3=24 3x6=18 6x3=18

5x3=15 6x6=36 2x3=6 7x2=14 9x4=36

66 0 2 7 5

0 0 8 4

4 9 0 0

0 0 5 0

5. 0 6 2 0 0 6. 1 0 7 0 0 7. 9 0 0 6 0

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

PAGE

1. 2. 3. 4. 5. 6. 7. 8.

PAGE

1. 2. 3. 4. 5. 6. 7. 8.

1. 2. 3. 4. 5. 6. 7. 8. 1. 2. 3. 4. 5. 6.

12 42 14 49 16 56 18 63

18 48 21 56 24 64 27 72

24 54 28 63 32 72 36 81

30 60 35 70 40 80 45 90

PAGE

PAGE

0 15 25 0 5 20 0

40 20 2 35 90 45 35

70 40 12 18 0 14 10

20 10 100 15 30 4 20

30 30 10 16 40 5 50

45 21 60 36 35 63 0 30

6 48 9 0 81 30 64 100

42 0 0 90 14 27 15 7

50 18 28 56 20 49 12 4

36 12 54 6 40 3 16 72

2x9=18 4x6=24 9x(2x4) (5x7)x4 8x5+8x9 7x9+3x9 68 69 546 186 108

159 128 106 146 184

305 459 305 168 648

48 146 188 88 148

73 140 581 468 235 472

252 136 238 672 372

130 135 112 87 138

424 644 315 375 392

432 198 492 282 711

74

1. 1,448 1,466 2. 1,569 488 3. 1,839 2,766

1,248 1,896 1,263 3,288 6,399 628 1,682 1,893 284 1,536 1,468 1,684

Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

2,577 2,512 4,752 1,865 3,766 7,461

6,339 32,928

42,876 20,160 12,825 31,350 51,804 68,868 54,423 22,218 21,552 19,824

24,878 35,696

63,099 10,486 18,826 24,084 21,939 36,484 16,884 72,888

22,036

43,045

8,700

20,315

9,558

8,238

89,280

11,711

66

112

1,035 496

105

210

528

258

1,466

588

3,055 1,440 5,775

1,299

2,590 862

3,519

3,292

79

1. 595 222 232 730 648 912 2. 2,408 3,215 228 3,185 747 3,150 3. 1,924 10,927 2,076 12,045 6,032 1,884 4. 24,948 1,197 3,941 9,940 35,180 11,263 5. 44,205 10,460 55,244 32,445 33,304 39,912 PAGE

80

1. 7 4 5 9 2. 7 6 6 5 3. 8 9 6 8

141

4. 4 7 9 3 5. 5 8 9 4

1 6 1 6 1 6 1 6

PAGE

3,348 5,928

328

1. 2. 3. 4. 1. 2. 3. 4.

21,966 48,888 18,996 16,882 16,486 6,488 35,707 16,288 12,884 15,996

189

PAGE

PAGE

78

1. 108 86 2. 568 164 3. 1,269 4,866 4. 693 2,036 5. 12,366 38,700 PAGE

2,268 1,827

77

1. 15,741 23,180 2. 61,064 37,664 3. 19,614 31,608 4. 21,872 54,720 5. 35,852 24,336 PAGE

2,540 4,165 2,338 4,416 1,449 3,412 2,385 2,296 4,825 2,264

76

1. 10,828 10,864 2. 16,884 21,693 3. 15,339 12,996 4. 8,844 12,868 5. 18,699 16,840 PAGE

46 96 88 217 189

75

1. 2,185 2,108 2. 1,650 4,095 3. 4,734 6,608 4. 2,912 1,892 5. 3,129 4,370

72

434 144 584 252 430

PAGE

4. 886 4,866 2,199 1,048 1,288 693 5. 1,426 1,569 486 628 3,055 2,463

71

48 567 104 249 216

PAGE

1. 2. 3. 4. 5.

10 20 15 30 20 40 25 50

7x4=28 5x3=15 3x(7x2) (2x6)x9 6x3+6x2 2x6+5x6

PAGE

1. 2. 3. 4. 5.

8 18 12 27 16 36 20 45

70

16 8 40 25 80 0 0 24

PAGE

6 16 9 24 12 32 15 40

69

8 2 20 10 30 12 40

PAGE

4 14 6 21 8 28 10 35

68

6 36 7 42 8 48 9 54

PAGE

1. 2. 3. 4. 5. 6. 7.

67

2 12 3 18 4 24 5 30

1. 2. 3. 4. 5.

9 8 9 7

PAGE

1. 2. 3. 4. 5.

5. 6. 7. 8.

1 6 1 6

2 7 2 7

3 8 3 8

4 9 4 9

5 10 5 10

3 8 3 8

4 9 4 9

5 10 5 10

5. 6. 7. 8.

1 6 1 6

2 7 2 7

3 8 3 8

4 9 4 9

5 10 5 10

6. 7. 8. 9. 10.

10 5 10 10 2

2 5 5 2 5

2,5,10 2 2,5,10 5 2

2 10 2 5 5

10 2 5 3 10

84 6,7x6=42 4,8x4=32 9,9x9=81 9,7x9=63 8,4x8=32 9,5x9=45 6,9x6=54 8,8x8=64

4,4x4=16 9,2x9=18 7,5x7=35 6,6x6=36 8,10x8=80 7,4x7=28 9,3x9=27 8,9x8=72

85 5 5 4 4

2 8 7 2

4 8 6 5

8 8 6 4

5. 6. 7. 8.

7 8 9 6

10 2 5 8

12 19 14 18 11

29 13 21 16 14

16 42 11 19 46

12 13 24 19 11

31 31 59 82 87

83 69 85 82 92

50 86 59 96 96

63 49 83 73 28

109 107 114 214

368 135 294 109

284 144 166 189

154 215 146 463

869 885 959 637

863 145 385 927

539 781 678 842

863 938 667 895

7 3 3 8

9 3 7 7

6 5 9 6

86

87

88

89

246 804 634 883

PAGE

1. 2. 3. 4.

5 10 5 10

83

158 137 127 139

PAGE

1. 2. 3. 4.

2 7 2 7

21 81 71 56 94

PAGE

1. 2. 3. 4.

4 9 4 9

82

18 31 14 12 13

PAGE

1. 2. 3. 4. 5.

3 8 3 8

6,3x6=18 8,6x8=48 5,10x5=50 5,3x5=15 8,2x8=16 9,8x9=72 7,7x7=49 5,6x5=30

PAGE

1. 2. 3. 4.

2 7 2 7

5 2 2,5,10 2 2,5,10

PAGE

1. 2. 3. 4. 5. 6. 7. 8.

81

90

1,429 1,421 4,579 1,487

2,871 1,224 2,516 1,065

1,804 1,258 1,242 3,828

2,846 1,007 1,186 1,749

1,363 1,549 1,526 3,187

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Answer Key PAGE

1. 2. 3. 4. 5. 6.

PAGE

1. 2. 3. 4. 5. 6.

1. 2. 3. 4.

17 12 150 749 142 268

24 123 72 115 1,370 1,193

14 123 466 187 234 2,346

16 33 74 679 827 788

PAGE

PAGE

1. 2. 3. 4.

1. 2. 3. 4. 5. 6. 7. 8.

$4.25 $15.85 $24.90 $21.25

1. 2. 3. 4. 5. 6. 7. 8.

$3.90 $9.36 $0.39 $0.11

102

1. $20.70 $18.92 $47.25 $16.83 $7.92 2. $38.15 $41.92 $75.96 $10.68 $35.28 3. $32.86 $150.64 $52.20 $181.05 $194.80 4. $0.62 $1.69 $2.28 $1.76 $1.87 5. $0.74 $0.38 $0.72 $1.51 $1.47 6. $8.52 $5.78 $13.57 $5.38 $1.66

48 39 21 208 22 16,428

6 128 12 25 1,086 29

7 9 17 1,899 1,408 2,496

438 87 1,185 2,352 85 35,170

376 990 97 1,706 22,096 175

26 1,377 32 18,102 2,718 2,467

90 9 1,266 23 37 451

96 8 218 1,535 74 1,190 17,124

97 $0.15 $0.16 $0.10 $0.30 $0.45 $0.46 $0.25 $0.56 $0.75 $0.85 $0.95

$0.50 $0.75 $1.00 $1.10 $1.16 $1.17

98

$7.25 $4.21 $30.30 $15.08 $26.02 $41.50 1 $5 bill, 3 $1 bills, 1 quarter, 1 dime, 1 nickel, and 3 pennies; 1 $20 bill, 4 $1 bills, 1 quarter, and 1 nickle

Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

1. 2. 3. 4.

PAGE

1. 2. 3. 4.

5. 6. 7. 8.

$12.74 $3.40 $5.50 $24.25

105 $11.32 $10.22 $0.66 $19.40 $0.85 $9.73

$24.08 $20.51 $4.62 $19.36 $33.53 $12.20

$15.59 $2.86 $48.56 $1.24 $17.74 $18.83

$1.58 $1.93 $15.63 $66.01 $22.94 $1.94 $2.87 $27.78 $20.91 $15.43 $175.21$18.59

$12.04 $1.16 $0.14 $1.89 $6.35 $24.03

$42.25 $11.21 $0.82 $20.17 $23.16 $7.63

$1.64 $10.27 $0.08 $53.37 $68.70 $18.03

3 5 8 12 3 60

106

107 2 22 7 7 16 9

12 8 8 1 7 5

142

7. 8. 9. 10. 11. 12.

49 8 x ÷ x x

9 12 + -

4 40 ÷ + x

1. 2. 3. 4. 5.

8+n=12 24÷n=3 10-n=5 2xn-2=8 10xn=50 n÷7=7 6+n=5x2 (n+4)÷2=7

111 n=12 n=0 n=8 n=9 n=9

n=10 6. n=5 7. n=4 8. n=10 9. n=1 10.

n=0 n=5 n=3 n=7 n=6

n=9 n=33 n=12 n=7 n=2 n=7 n=22 n=5 n=4 n=8

n=25 6. n=42 7. n=5 8. n=30 9. n=12 10.

n=3 n=3 n=4 n=3 n=77n=2 n=3 n=2 n=7 n=5

112

n=3 n=6 n=4 n=16 n=5

PAGE

1. 2. 3. 4. 5.

110

n=5 n=6 n=6 n=18 n=5

PAGE

$0.92 $18.92 $3.92 $3.92 $11.83 $22.05

PAGE

1. 2. 3. 4. 5. 6.

104

$8.85 $16.88 $31.20 $12.71 $1.94 $1.84

PAGE

1. 2. 3. 4. 5. 6.

PAGE

1. 2. 3. 4. 5.

109

n-3=5 nx6=36 4xn=28 3+n=2+5 12+n=15 n-7=7 nx12=60 11+9-6=n

5. $11.54

$6.25 $57.00 $1.04 $5.47

PAGE

1. 2. 3. 4. 5. 6.

103

$2.15 $8.58 $8.30 $59.00

subtract 6 add 10 divide by 3 multiply by 4 add 1, add 2 subtract 0, 1, 2, 3, 4 divide by 4 add 100

10, 13, 16, 19, 22, 25, 28, 31 0, 7, 14, 21, 28, 35, 42, 49 50, 100, 150, 200, 250, 300, 350 64, 32, 16, 8, 4, 2, 1 30, 29, 27, 24, 20, 15, 9, 2 1, 4, 9, 16, 25, 36, 49, 64 3, 7, 10, 14, 17, 21, 24, 28, 31, 35 9:30, 10:25, 10:30, 11:25, 11:30, 12:25, 12:30, 1:25, 1:30, 2:25, 2:30, 3:25

PAGE

1. 2. 3. 4. 5. 6. 7. 8.

108

add 3 subtract 5 multiply by 2 add 0, 1, 2, 3, 4 subtract 20 multiply by 3 add 3, add 4 divide by 2

PAGE

101

$0.88 $8.88 $0.26 $0.37

PAGE

$0.10 $0.25 $0.35 $0.55 $0.50

PAGE

$14.00 $28.00 $15.50 $1.50

100

$26.25 $26.85 $7.80 $16.95

PAGE

95

1. $0.05 $0.20 2. $0.25 $0.50 3. $0.25 $1.05 4. $0.25 $1.15

1. 2. 3. 4.

99

$21.00 $23.50 $20.00 $22.50

PAGE

94

13 4,417 1,536 84 1,854 572

PAGE

1. 2. 3. 4.

6 7 13 13 84 862

93

63 35 205 42 367 2,709

PAGE

1. 2. 3. 4. 5. 6.

12 5 52 6 75 119

14 books 1,070 tickets 288 crayons 87 miles 39 pages

PAGE

1. 2. 3. 4. 5. 6.

3 3 6 44 471 359

84 dandelions 8 marbles 77 hours 93 miles 8 bags

PAGE

1. 2. 3. 4. 5.

PAGE

2 9 21 84 145 157

92

28 94 148 174 473 3,808

PAGE

1. 2. 3. 4. 5.

91

3 9 8 13 54 103

n=4 n=6 n=36 n=7 n=18

n=63 n=6 n=7 n=45 n=7

113

n-7=18 15+n=25 n+10=30 n-7=13 2n=12

PAGE

114

1. 1, 10, 100, 1,000, 10,000, 100,000 2, 4, 6, 8, 10, 12 2. 4, 8, 12, 16, 20, 24 6, 12, 18, 24, 30, 36 3. 1, 3, 5, 7, 9, 11 9, 18, 27, 38, 45, 54 4. ÷ + ÷ 5. ÷ ÷ ÷ 6. ÷ x 7. n=4 n=0 n=12 8. n=4 n=1 n=1 9. n=7 n=4 n=2 10. n-8=7, n=15 11. 2n+1=15, n=7

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PAGE

115

PAGE

1. 15 minutes after 7 15 minutes before 4 2. 5 minutes after 9 10 minutes before 7 3. 25 minutes before 11 17 minutes after 8 4. 2 days 3 minutes 5. 14 days 72 hours 6. 30 Nov. 6 7. Monday PAGE

116

1. 7:21 2. 10:32

5:40 8:51

11 12 1

3.

3 4

8 7 6

4.

11 12 1 2

10 9

7 6

3 4 7 6

PAGE

7 6

6:20 5:30

7 6

3 4

5

7 6

5

3 4 7 6

5

5

2

10 9

3 4

8 7 6

5

118

119

40 minutes 1 hour and 40 minutes 3 hours and 20 minutes 35 minutes

PAGE

PAGE

6. 7. 8. 9.

years seconds minutes minutes

5. 6. 7. 8.

2 ft 5 yd 400 miles 11 in 20 yd 1 in 1,000 miles 4 ft

121

in yd miles ft miles in ft yd

1. 2. 3. 4. 5.

2 2 1 6 5

PAGE

1. 2. 3. 4.

PAGE

1. 2. 3. 4.

PAGE

yd 2 ft 6. in 3 yd 7. 4 ft 8. ft 4 in 9. yd 1 ft 10.

ft 3 in ft 4 ft yd 1 ft miles ft 1 in

5 4 1 9 6

yd in yd yd yd 2 ft

124 5. 6. 7. 8.

8 ft 22 ft 22 ft 13 yd

1 ft 9 in 4 yd 1 ft 7 in 12 ft 4 in 34 ft 2 in

125

cm m km cm

PAGE

5 3 6 2 6

km cm m m

5. 6. 7. 8.

126

2m 20 cm 1,400 km 80 m

350 km 30 m 70 cm 10 km

1. 2. 3. 4. 5. 6. 7. 8. 9. 10.

PAGE

1. 2. 3. 4. 1. 2. 3. 4.

PAGE

1. 2. 3. 4. 5. 6. 7. 8. 1. 2. 3. 4. 5. 6.

Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

5. 104 cm

134

No 25 ft 5m Yes

PAGE

135 11 12 1

7 6 11 12 1 3 4

8 7 6

5 cm 3 cm 4 mm 20 cm 4 km 2m 900 cm 5 km 300 m 90 cm 53 mm 720 cm 90 cm 2 m 33 cm 5 km 300 m

21 17 13 39

cm m km cm

1 mm 100 m 2 mm

3.

5

3 4

8 7 6

5

7 6

3 4 7 6

5

5

11 12 1 2

8

3 4

8

5

10 9

2

10 9

11 12 1 2

5

11 12 1 3 4

7 6

11 12 1 10 9

7 6

2

8

3 4

8

5

10 9

2

10 9

11 12 1 2

10 9

6 mm 10 cm 200 m 10 cm 20 cm 200 m 4 mm 10 cm

3 4

8

2.

11 12 1 2

10 9

2

10 9

3 4

8 7 6

5

4. 6 hours and 45 minutes 5. 4 hours and 5 minutes PAGE

136

1. Perimeter 2+2+2+2=8 ft Area 2x2=4 sq ft 2. Perimeter 7+3+7+3=20 m Area 7x3=21 sq m 3. Perimeter 3+4+3+4=14 ft Area 3x4=12 sq ft 4. Perimeter 5+5+5+5=20 cm Area 5x5=25 sq cm 5. 14 ft 6. No 7. 90 sq ft of carpeting and 38 ft of border material

129

4+2+4+2=12 m 5+3+5=13 in 6+6+6+6=24 ft 3+3+3+3+3=15 cm 6+8+10=24 mm 1+5+1+5=12 yd

PAGE

1. 2. 3. 4. 5. 6.

133

4. 6 cm 5. 16 cm

128

3 cm 2m 6 km 15 m 9m 5 km 10 cm 32 m

4. 6x9=54 sq cm 5. 2x2=4 sq ft 6. 5x6=30 sq ft

28 m 140 yd 84 sq ft 99 sq in

PAGE

127

2 km 8m 7m 9 cm 6,000 m 300 mm 2m 3,400 m 2m 903 cm

132

1. 3x3=9 sq cm 2. 2x5=10 sq m 3. 4x3=12 sq ft

1. 6:15

1. 4 cm 2. 12 cm 3. 2 cm PAGE

131

1. 4x4=16 sq m 4. 3x3=9 sq cm 2. 8x9=72 sq ft 5. 5x7=35 sq yd 3. 7x2=14 sq mm 6. 10x1=10 sq in

123 ft 5 ft 6 mile yd 1 ft 3

5 ft 3 in 6 yd 1 ft 13 ft 1 mile

PAGE

120

minutes years seconds minutes months

PAGE

4. 6 in 5. 1 in

11 12 1 2

8

3 4

8

11 12 1 10 9

2

10 9

40 minutes 1 hour and 35 minutes 2 hours and 35 minutes 45 minutes 1 hour and 1 minute 2 hours and 5 minutes 7 hours 21 minutes 1 hour and 38 minutes 2 hours and 15 minutes 1 hour and 50 minutes 11 hours and 20 minutes

PAGE

1. 2. 3. 4.

3 4

8

5

2

7 6

1. 2. 3. 4. 5.

5

11 12 1 2

10 9

11 12 1 10 9 8

1. 2. 3. 4.

7 6

11 12 1 3 4

8

1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12.

3 4

8

5

4:35 12:00 2

10 9

PAGE

2

10 9

117 11 12 1

4.

5

PAGE

11 12 1 3 4

7 6

1. 8:40 2. 12:45 3.

7 6

2

8

5

3 4

8

5

10 9

2

10 9

11 12 1 2

8

3 4

8

11 12 1

11 12 1 2

10 9

5

10 9

11:05 6:17

122

1. 2 in 2. 5 in 3. 3 in

130

4+4+4+4+4=20 in 6+6+6+6=24 ft 7+3+7+3=20 cm 9+9+9=27 m answer to come 1+6+1+6=14 in

143

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Saddleback Math Covers

10/22/06

6:24 PM

Page 1

MATH COMPUTATION SKILLS & STRATEGIES Every book in the Math Computation Skills and Strategies series contains over 100 reproducible pages.These highinterest activities combine computation practice with strategy instruction. Featuring a Scope and Sequence chart, the books allow educators to supplement their math lessons with the extra math practice all students need. In addition, periodic reviews allow for reinforcement and assessment of skills.

H I G H - I N T E R E S T M AT H C O M P U TAT I O N S K I L L S & S T R AT E G I E S

HIGH-INTEREST

• LEVEL 3

The books are grade specific, but they were created with students of all ages in mind. Each book features ready-to-use pages with instructional tips at the beginning of each lesson. Math Computation Skills and Strategies reproducible books are the perfect choice for educators.

HIGH-INTEREST

MATH COMPUTATION SKILLS & STRATEGIES Operations Fractions and Decimals Whole Numbers Perimeter and Area Regrouping

Three Watson • Irvine, CA 92618-2767 • 888-SDL-BACK • www.sdlback.com

S A D D L E B A C K E D U C AT I O N A L P U B L I S H I N G

Saddleback E-Book

Solving Word Problems Money Measurement

LEVEL

3

100 plus+ REPRODUCIBLE ACTIVITIES

10/22/06

6:24 PM

Page 1

MATH COMPUTATION SKILLS & STRATEGIES Every book in the Math Computation Skills and Strategies series contains over 100 reproducible pages.These highinterest activities combine computation practice with strategy instruction. Featuring a Scope and Sequence chart, the books allow educators to supplement their math lessons with the extra math practice all students need. In addition, periodic reviews allow for reinforcement and assessment of skills.

H I G H - I N T E R E S T M AT H C O M P U TAT I O N S K I L L S & S T R AT E G I E S

HIGH-INTEREST

• LEVEL 3

The books are grade specific, but they were created with students of all ages in mind. Each book features ready-to-use pages with instructional tips at the beginning of each lesson. Math Computation Skills and Strategies reproducible books are the perfect choice for educators.

HIGH-INTEREST

MATH COMPUTATION SKILLS & STRATEGIES Operations Fractions and Decimals Whole Numbers Perimeter and Area Regrouping

Three Watson • Irvine, CA 92618-2767 • 888-SDL-BACK • www.sdlback.com

S A D D L E B A C K E D U C AT I O N A L P U B L I S H I N G

Saddleback E-Book

Solving Word Problems Money Measurement

LEVEL

3

100 plus+ REPRODUCIBLE ACTIVITIES

MATH COMPUTATION SKILLS & STRATEGIES

LEVEL

3

ISBN 1-56254-966-9 Copyright © 2006 by Saddleback Educational Publishing. All rights reserved. No part of this book may be reproduced in any form or by any means, electronic or mechanical, including photocopying, recording, or by any information storage and retrieval system without written permission of the publisher, with the following exception. Pages labeled Saddleback Educational Publishing ©2006 are intended for reproduction. Saddleback Educational Publishing grants to individual purchasers of this book the right to make sufficient copies of reproducible pages for use by all students of a single teacher.This permission is limited to an individual teacher and does not apply to entire schools or school systems. Printed in the United States of America

Table of Contents Page

Lesson

5 . . . . . . . . . Introduction Unit 1 . . . Numbers and Number Sense 6 . . . . . . . . . Write Whole Numbers 7 . . . . . . . . . Understand Place Value 8 . . . . . . . . . Read Forms of Numbers 9 . . . . . . . . . Order and Compare Whole Numbers 10 . . . . . . . . Round Numbers to the Nearest Ten 11 . . . . . . . . Round Numbers 12 . . . . . . . . Whole Number Practice 13 . . . . . . . . Recognize and Name Fractions 14 . . . . . . . . Compare Fractions 15 . . . . . . . . Use Fractions Describing Part of a Group 16 . . . . . . . . Compare Fractions 17 . . . . . . . . Understand Decimals 18 . . . . . . . . Write Decimals 19 . . . . . . . . Compare Decimals and Fractions 20 . . . . . . . . Fraction Practice 21 . . . . . . . . Review Number Sense 22 . . . . . . . . Review Number Sense Unit 2 . . . Addition and Subtraction 23 . . . . . . . . Understand Addition 24 . . . . . . . . Understand Properties of Addition 25 . . . . . . . . Add Fast Facts 26 . . . . . . . . Practice Addition 27 . . . . . . . . Practice Addition 28 . . . . . . . . Add Numbers to 2 Digits 29 . . . . . . . . Add Numbers to 3 Digits 30 . . . . . . . . Add Numbers to 3 Digits 31 . . . . . . . . Add Numbers to 4 Digits 32 . . . . . . . . Add Numbers to 4 Digits 33 . . . . . . . . Add Numbers to 4 Digits 34 . . . . . . . . Practice Mixed Addition 35 . . . . . . . . Practice Mixed Addition 36 . . . . . . . . Understand Subtraction 37 . . . . . . . . Subtract Fast Facts 38 . . . . . . . . Practice Subtraction 39 . . . . . . . . Practice Subtraction 40 . . . . . . . . Recognize Fact Families 41 . . . . . . . . Check Addition and Subtraction 42 . . . . . . . . Subtract Numbers to 2 Digits 43 . . . . . . . . Subtract Numbers to 3 Digits 44 . . . . . . . . Subtract Numbers to 3 Digits 45 . . . . . . . . Subtract Numbers to 4 Digits 46 . . . . . . . . Subtract Numbers to 4 Digits 47 . . . . . . . . Subtract Numbers to 4 Digits 48 . . . . . . . . Practice Mixed Subtraction 49 . . . . . . . . Practice Mixed Subtraction

50 51 52 53 54 55 56 57 58 59 60 61 62 63 64

. . . . . . . . Add Three Numbers . . . . . . . . Solve Word Problems . . . . . . . . Solve Word Problems . . . . . . . . Review Addition and Subtraction . . . . . . . . Review Addition and Subtraction . . . . . . . . Find Equivalent Fractions . . . . . . . . Reduce Fractions . . . . . . . . Add Fractions . . . . . . . . Add Fractions . . . . . . . . Subtract Fractions . . . . . . . . Subtract Fractions . . . . . . . . Solve Word Problems . . . . . . . . Solve Word Problems . . . . . . . . Review Fractions . . . . . . . . Review Fraction

Unit 3 . . . .Multiplication and Division 65 . . . . . . . . Understand Multiplication 66 . . . . . . . . Multiply by 0 and 1 67 . . . . . . . . Multiply Fast Facts 68 . . . . . . . . Multiply Fast Facts 69 . . . . . . . . Multiply by 2, 5, and 10 70 . . . . . . . . Multiply 1-Digit Numbers 71 . . . . . . . . Understand Properties of Multiplication 72 . . . . . . . . Multiply 2 Digits by 1 Digit 73 . . . . . . . . Multiply 2 Digits by 1 Digit 74 . . . . . . . . Multiply 3 Digits by 1 Digit 75 . . . . . . . . Multiply 3 Digits by 1 Digit 76 . . . . . . . . Multiply 4 Digits by 1 Digit 77 . . . . . . . . Multiply 4 Digits by 1 Digit 78 . . . . . . . . Practice Multiplication 79 . . . . . . . . Practice Multiplication 80 . . . . . . . . Understand Division 81 . . . . . . . . Divide Fast Facts 82 . . . . . . . . Divide Fast Facts 83 . . . . . . . . Divide by 2, 5, and 10 84 . . . . . . . . Check Multiplication and Division 85 . . . . . . . . Divide 2 Digits by 1 Digit 86 . . . . . . . . Divide 2 Digits by 1 Digit 87 . . . . . . . . Divide 3 Digits by 1 Digit 88 . . . . . . . . Divide 3 Digits by 1 Digit 89 . . . . . . . . Divide 4 Digits by 1 Digit 90 . . . . . . . . Divide 4 Digits by 1 Digit 91 . . . . . . . . Practice Mixed Division 92 . . . . . . . . Practice Mixed Division 93 . . . . . . . . Solve Word Problems 94 . . . . . . . . Solve Word Problems 95 . . . . . . . . Review Multiplication and Division 96 . . . . . . . . Review Multiplication and Division

Table of Contents Unit 4 . . . . Operations with Decimals 97 . . . . . . . . Count and Write Money 98 . . . . . . . . Count and Write Money 99 . . . . . . . . Add and Subtract Money 100 . . . . . . . Add and Subtract Money 101 . . . . . . . Multiply and Divide Money 102 . . . . . . . Multiply and Divide Money 103 . . . . . . . Solve Word Problems 104 . . . . . . . Solve Word Problems 105 . . . . . . . Review Money 106 . . . . . . . Review Money Unit 5 . . . . Equations 107 . . . . . . . Write Number Sentences 108 . . . . . . . Describe Patterns 109 . . . . . . . Complete Patterns 110 . . . . . . . Write Equations 111 . . . . . . . Solve Equations 112 . . . . . . . Solve Equations 113 . . . . . . . Write Equations 114 . . . . . . . Review Equations Unit 6 . . . . Measurement 115 . . . . . . . Understand Time 116 . . . . . . . Read Time 117 . . . . . . . Find Time Intervals 118 . . . . . . . Find Time Intervals 119 . . . . . . . Add Intervals of Time 120 . . . . . . . Duration 121 . . . . . . . Find Lengths (Customary) 122 . . . . . . . Find Lengths (Customary) 123 . . . . . . . Convert Lengths 124 . . . . . . . Add and Convert Lengths 125 . . . . . . . Find Lengths (Metric) 126 . . . . . . . Find Lengths (Metric) 127 . . . . . . . Convert Lengths 128 . . . . . . . Add and Convert Lengths 129 . . . . . . . Understand Perimeter 130 . . . . . . . Find Perimeters 131 . . . . . . . Understand Area 132 . . . . . . . Find Areas 133 . . . . . . . Solve Word Problems 134 . . . . . . . Solve Word Problems

135 . . . . . . . Review Measurements 136 . . . . . . . Review Measurements 137 138 139 140 141 142 143 144

. . . . . . . Scope and Sequence . . . . . . . Answer Key . . . . . . . Answer Key . . . . . . . Answer Key . . . . . . . Answer Key . . . . . . . Answer Key . . . . . . . Answer Key . . . . . . . Answer Key

About This Series This series was created by Saddleback Educational Publishing to provide extensive math practice as a supplement to in-class instruction. Math Computation Skills and Strategies can easily be integrated into math curricula to reinforce basic skills.The lessons focus on practice, with up to 70 items a page. In addition, the lessons are designed to challenge students as their skills grow stronger. As the students progress through the individual lessons, the degree of difficulty increases. Closely adhering to state standards, this series provides grade-level appropriate lessons that are approachable for students at a range of abilities. Review lessons are interspersed throughout the book to allow students to reinforce their skills. Furthermore, the Scope and Sequence chart at the back of the book will help you choose lessons that are applicable to your curriculum.This series covers a range of topics, allowing students to build skills in multiple areas. Additionally, the lessons provide a variety of approaches, including word problems that emulate real-life situations. Each book is designed to challenge students who are learning skills at the corresponding grade level. However, the lessons were created not just for younger children, but for students of all ages. Saddleback Educational Publishing believes in allowing students to strengthen their skills with fun and exciting practice lessons.We hope you enjoy using this series to supplement class instruction and help students gain skills for proficiency in math computation.

Write Whole Numbers To write whole numbers, just figure out how many thousands, hundreds, tens, and ones there are.

Thousands

Hundreds

Tens

Ones

1

2

4

9

= 1,249

Directions: Write the number.

1.

=

2.

=

3.

=

4.

=

Directions: Write the number. a

b

5. 7 hundreds, 3 tens, 5 ones =

9 hundreds, 4 tens, 8 ones =

6. 3 hundreds, 9 tens, 9 ones =

4 hundreds, 6 ones =

7. 4,000 + 200 + 10 + 4 =

8 hundreds, 8 tens =

8. 5,000 + 600 + 8 =

9 thousands, 2 tens =

9. forty-eight =

one hundred twenty-five =

10. nine hundred forty-one =

five thousand twenty-three =

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 6

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Understand Place Value

th ou sa hu nds nd te red ns s on es

Understanding place value in whole numbers is easy. The ones place is on the right.

6,437 The 4 is in the hundreds place. Directions: Answer the question or complete the sentence.

9,685 1. Which digit is in the ones place? 2. Which digit is in the thousands place?

71,246 3. How many thousands are there? 4. How many tens are there?

854 5. The 5 is in the 6. The 4 is in the

place. place.

2,021 7. There is a 2 in the 8. How many hundreds are there?

place and in the

place.

692 9. How many ones are there? 10. The 9 is in the

place.

42,775 11. How many thousands are there? _____ place and in the 12. There is a 7 in the Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

place. Date

7

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Read Forms of Numbers You can write a number in lots of different ways.

Words: Nine thousand one hundred thirty-one Standard form: 9,131 Expanded form: 9,000 + 100 + 30 + 1

Directions: Write the number in standard form. a

b

1. 400 + 50 + 2 =

7,000 + 600 + 20 + 9 =

2. three thousand three =

2,000 + 50 + 5 =

3. 4,000 + 200 + 10 + 3 =

eight hundred twenty-five =

4. 600 + 40 +1 =

1,000 + 50 =

5. two thousand three hundred =

8,000 + 500 + 20 =

Directions: Write the number in expanded form. 6. 2,491 = 7. nine hundred five = 8. twenty-six = 9. 9,204 = 10. 2,212 = 11. 4,001 = 12. 599 =

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 8

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Order and Compare Whole Numbers When you order numbers, compare them to figure out which is greater.

853 > 421

99 < 203

> means greater than

8 + 3 = 11

< means less than

= means equal to

Directions: Complete the number sentence using =, <, or >. a

1.

2,105

2.

c

b

d

23

351

951

20+3

23

19

9

423

419

28

61

125

135

104

99

3.

18

10+7

484

448

305

311

1,102

4.

59

60

2,002

6+6

11

85

94

5.

725

635

7+8

624

642

99

98

6.

5,409

9,201

989

68

60+8

6,001

1,999 15 2,555

2,556

112

Directions: Complete. Use any number that makes the sentence true. a

c

b

d

7.

85 > ____

912 < ____

9 + 3 = ____

49 > _____

8.

600 > _____

8 + 7 < _____

203 < _____

89 < _____

9.

29 < _____

108 > _____

64 > _____

55 < _____

10.

65 < _____

14 = _____

101> _____

340 > _____

11.

12 + 2 > _____

850 > _____

79 < _____

9 + 6 < _____

12.

999 < _____

8 + 8 = _____

250 < _____

435 > _____

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 9

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Round Numbers to the Nearest Ten Rounding to the nearest ten is easy. Just look at the number in the ones place. If it’s less than 5, round down. If it’s greater than or equal to 5, round up!

80

81

82

83

84

85

86

87

88

89

90

10 11 12 13 14 15 16 17 18 19 15 is between 10 and 20. In 15, the digit in the ones place is equal to 5, so it rounds up to 20.

20

84 is between 80 and 90. In 84, the digit in the ones place is less than 5, so it rounds down to 80.

Directions: Complete the sentence. Round to the nearest ten. 1. 29 is between

and

and rounds to

.

2. 45 is between

and

and rounds to

.

3. 63 is between

and

and rounds to

.

4. 142 is between

and

and rounds to

.

5. 756 is between

and

and rounds to

.

Directions: Round to the nearest ten. a

c

b

d

6.

48

63

99

29

7.

19

24

82

55

8.

67

31

76

93

9.

124

271

387

452

10.

356

523

896

974

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 10

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Round Numbers When you round, just remember to look at the digit in the place to the right of the place to which you are rounding.

Round to the nearest thousand. Round to the nearest hundred.

4, 391 1,963

4,000 2, 000

Directions: Round to the nearest hundred. a

c

b

d

1.

843

1,291

6,920

481

2.

109

9,255

631

5,261

3.

1,962

819

4,925

777

4.

276

5,555

800

2,541

5.

1,200

899

6,729

3,270

6.

4,253

963

346

1,928

Directions: Complete the sentence. 7. 2,180 rounded to the nearest thousand is 8. 13,408 rounded to the nearest ten is 9. 650 rounded to the nearest hundred is 10. 990 rounded to the nearest hundred is 11. 8,077 rounded to the nearest thousand is 12. 6,455 rounded to the nearest ten is

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 11

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Whole Number Practice Let’s practice some of our skills!

Directions: Complete the chart.

Word Form

Standard Form

1.

Expanded

732

2.

Nine hundred five

3.

200 + 30 + 9

4.

Two thousand fifty-six

Directions: Complete the sentence.

14,983 5. There are 6.

hundreds. is the number in the tens place.

7. There are 4

.

8. 3 is the number in the

place.

Directions: Order the numbers from least to greatest. b

a

9. 432; 455; 193

261; 162; 621

10. 1,205; 905; 1,052

432; 623; 433

11. 699; 701; 679

271; 143; 1,003

12. 5,668; 6,212; 7,012

999; 909; 990

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 12

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Recognize and Name Fractions In a fraction, the top number is called the numerator, and the bottom number is called the denominator.

5 8

There are 5 shaded sections. 5 is the numerator. There are 8 sections in all. 8 is the denominator.

Directions: Write the fraction that names the shaded part. a

c

b

1.

2.

Directions: Shade the part of the figure indicated by the fraction. a

c

b

3.

1 4

6 7

4.

2 3

5 8

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

5 6

4 9

Date 13

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Compare Fractions When you compare fractions that have the same denominator, just compare the numerators.

1 3 1 31 3 < < < 8 8 8 88 8

Remember: < means less than and > means greater than.

Directions: Compare the fractions shown by the shaded parts. a

c

b

1.

1 3

2 1 3 3

2 3

1 2

2 1 2 2

2 2

3 4

5 8

7 5 8 8

7 8

5 7

4 5 7 7

4 7

7 10

1 3 4 4

1 4

2.

75 10 10

5 10

Directions: Write the fractions that name the shaded parts. Compare. a

b

c

3.

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 14

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Use Fractions Describing Part of a Group We use fractions to describe a part of a group.

7 of of the the flowers flowers are are white not shaded. 10

Directions: Write a fraction for the part that is not shaded. 1.

2.

3.

4.

Directions: Write a fraction. 5.

What fraction of the balls is white or striped?

6.

What fraction of the sundaes has a cherry or chocolate sauce?

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 15

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Compare Fractions When fractions have different denominators, a picture can help you compare them.

2 4 2 42 4 > > > 3 9 3 93 9 2 2 2 4 4 4 Remember: < means than anddenominator >the means than. Evenless though Even though Even the though denominator thegreater denominator is smaller, is smaller, is issmaller, greater is greater than is greater than . than . . 3 3 3 9 9 9 Directions: Compare the fractions shown by the shaded parts. a

c

b

1.

1 2

1 1 5 2

1 5

5 6

2 5 3 6

2 3

2 5

2 2 4 5

2 4

1 3

2 1 9 3

2 9

3 8

3 3 4 8

3 4

9 10

49 10 5

4 5

2.

Directions: Write the fractions shown by the shaded parts, then compare them. a

b

c

3.

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 16

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Understand Decimals Decimals are like fractions, but they’re written in a different way.

=

6 = 0.6 = six tenths 10

Directions: Write a decimal for the shaded part of each picture. a

c

b

1. =

=

=

=

=

=

2.

Directions: Rewrite in decimal form. a

b

c

3.

5 = _____ 10

two tenths = _____

9 = _____ 10

4.

4 = _____ 10

1 = _____ 10

seven tenths = _____

5.

six tenths = _____

3 = _____ 10

four tenths = _____

6.

7 = _____ 10

one tenth = _____

10 = _____ 10

7.

eight tenths = _____

ten tenths = _____

2 = _____ 10

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 17

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Write Decimals Writing decimals is easy.The decimal place to the right of the tenths is called hundredths.

=

52 = 0.52 = fifty - two hundredths 100

Directions: Write a decimal for the shaded part. a

b

c

1.

2.

Directions: Shade the part indicated by the decimal. a

b

c

3. 0.41

0.60

0.13

0.33

0.09

0.90

4.

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 18

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Compare Decimals and Fractions When you convert a fraction into a decimal, first you have to turn the denominator into 10 or 100.

=

1 5 = = 0.5 2 10

Directions: Write a decimal for each picture. a

b

1. =

2 = = _____ 5 10

=

4 = = _____ 5 10

2. =

3 = = _____ 4 100

=

1 = = _____ 5 10

Directions: Shade and compare. b

a

3.

0.5

0.52

0.69

0.7

0.08

0.8

0.44

0.4

4.

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 19

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Fraction Practice Here’s some practice to sharpen those skills!

Directions: Complete. a

b

1.

2.

3.

0.4

0.4

0.5

0.5

4. Martha has 10 marbles and 4 of them are blue.Write a decimal for the part that is NOT blue. 5. Kate saw 9 cars in the parking lot.Two of them were pink and four were yellow. Write the fraction that describes how many cars were either pink or yellow. Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 20

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Review Number Sense Time for a quiz! Here we go!

Directions: Complete the number sentence with <, >, or =. a

1. 2. 3. 4. 5.

695 695 33 44

6,6950 , 950 11 44

7 +5 7 +5 1212 0.54 0.54 0.45 0.45 99 1010

c

b

0.9 0.9

11 33

22 33

890 890

0.10 0.10 0.10.1 22 1010

0.30.3

11 99

11 88

d

910 910

0.17 0.17 0.20.2 55 66

55 88

499 499 501 501 0.8 0.8

9 +9 + 9 9 1616

7777 100 100

0.50.5 0.60.6 8, 312 8, 312 8, 321 8, 321 0.71 0.71 0.60.6 66 77

44 55

4, 444 4, 444 5, 000 5, 000

Directions: Rewrite the number in a new form. a

€€ € €€

b

6.

45 in expanded form _____

4 in decimal form _____ 10

7.

0.53 in fraction form _____

8, 359 in expanded form _____

8.

0.9 in word form _____

eight hundred six in standard form _____

9.

two thirds in fraction form _____

90 in decimal form _____ 100

400 + 80 +1 in standard form _____

0.87 in fraction form _____

10.

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 21

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Review Number Sense Keep up the great work. You’re almost there!

Directions: Order the numbers from least to greatest. a

b

1.

168; 68; 1, 068 _____________

1 1 1 ; ; _____________ 6 3 4

2.

0.2; 0.4; 0.9 _____________

9, 008; 10, 001; 8, 999 _____________

3.

4, 873; 6, 214; 3, 979 _____________ 0.98; 0.89; 0.9 _____________

4.

4 29 ; 0.34; _____________ 10 100

5. 6.

8 9 6 ; ; _____________ 9 10 7 7 77 70 ; ; _____________ 12, 230; 1, 230; 123 _____________ 100 100 100 5 5 5 ; ; _____________ 0.09; 0.4; 0.21 _____________ 8 5 6

Directions: Answer the questions. 7. What is 7,926 rounded to the nearest hundred? 8. In 12,456, which digit is in the thousands place? 9. Becky ate 7 of the 8 gumdrops she had.What fraction is left? 10. What is 8,455 rounded to the nearest thousand? 11. In 0.57, how many hundredths are there? 12. Eduardo had a box of 10 crayons and 6 are left. In decimal form, how many are left? 13. In which places are there 9s in 19,149? Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 22

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Understand Addition Addition is all about putting two or more groups of things into one group.

How many pieces of fruit in all? 0

1

2

3

4

5

6

7

8

9 10 11 12 13 14 15 16 17 18 19 20

Use a number line. 9 + 7 = 16 Directions: Add. Use the number line to help you. a

b

c

d

1.

9+ 2 =

7+ 6 =

5+ 3 =

8+ 4 =

2.

4+ 6 =

5+ 7 =

9 +1=

2+ 3 =

3.

7+ 7 =

9+ 3 =

4+ 2 =

6+ 0 =

4.

8 +1=

3+ 4 =

6+ 6 =

7+5=

5.

6+ 5 =

2+ 9 =

3+ 3 =

4+ 8 =

6.

9+ 0 =

5+ 5 =

6 +1=

7+ 2 =

7.

3 +1=

9+ 8 =

9+ 5 =

6+ 9 =

8.

5 +1=

9+ 9 =

7+ 8 =

4+ 4 =

9.

4+ 7 =

6+ 2 =

8+ 8 =

3+ 0 =

10.

7 +1=

8+ 0 =

2+ 8 =

7+ 9 =

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 23

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Understand Properties of Addition Understanding the properties of addition will help you succeed.

The Identity Property says that you can add zero to any number and get that number.

(2 + 4) + 6

2 + (4 + 6)

{

The Associative Property says that you can change how numbers are grouped to add.

6+3 = 3+6

{

The Commutative Property says that you can add numbers in any order.

6 + 6 = 12

2 + 10 = 12

9+0=9

Directions: Use the Commutative Property to switch the numbers.Then add. a

b

1. 3 + 7 =

+

=

2+9=

+

=

2. 8 + 4 =

+

=

6+3=

+

=

Directions: Use the Associative Property to regroup the numbers.Then add. a

+(

+

)

(9 + 7) + 3 =

+(

+ +(

= +

+ )

(6 + 9) + 1 =

+(

+

) =

+

)

{

{

4. (8 + 4) + 3 =

+

{

{

3. (6 + 5) + 2 =

b

=

+

=

Directions: Complete the number sentences to show the Identity Property.

5. 5 +

a

b

=

+7=

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

c

10 +

=

Date 24

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Add Fast Facts Now it’s time for some speed addition.

Memorizing facts like 5 + 5 will make adding bigger numbers easy. 5 + 5 = 10

Directions: Time yourself. Learn these facts by heart. a

b

c

d

e

f

1.

9+ 3 =

5+ 4 =

2+ 2 =

7+ 3 =

6+ 7 =

2+ 8 =

2.

3+ 5 =

2+ 9 =

0+ 7 =

3+ 9 =

0+ 2 =

10 + 3 =

3.

0+ 0 =

4+ 2 =

1+ 6 =

5+ 5 =

7+ 2 =

9 +1=

4.

3+ 6 =

1+ 4 =

4+ 5 =

3+ 4 =

0+ 9 =

8+ 3 =

5.

8+ 2 =

7 + 10 =

2+ 7 =

0+ 5 =

9+ 2 =

6+ 6 =

6.

8 +1=

3+ 3 =

1+ 9 =

6+ 4 =

5+ 3 =

2+ 4 =

7.

9+ 6 =

4+ 6 =

8+ 4 =

2+ 3 =

1+ 7 =

10 + 4 =

8.

6+ 8 =

3+ 8 =

7+ 7 =

2 + 10 =

7+ 8 =

1+ 9 =

9.

2+ 5 =

7+ 4 =

6+ 2 =

8 + 10 =

0+ 7 =

4+ 8 =

10.

0+ 6 =

3+ 7 =

1+ 5 =

9+ 8 =

4+ 4 =

6+ 3 =

11.

8+ 8 =

8+ 6 =

4+ 3 =

0+ 4 =

2+ 6 =

7+ 5 =

12.

4+ 7 =

0+ 8 =

6 +1=

9+ 9 =

5+ 2 =

6 + 10 =

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 25

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Practice Addition Lining up your numbers carefully can be very important.

Here’s how to rewrite this number sentence in vertical form. 11 + 8 =

11 + 8 19

Directions: Rewrite in vertical form, then add. a

1.

b

12 + 5 =

14 + 4 = +

2.

22 + 6 =

+

41+ 3 =

53 + 6 =

11+ 7 = +

+

34 + 5 = +

4.

18 + 1 = +

+ 3.

c

21+ 4 =

20 + 6 = +

+

52 + 4 = +

43 + 5 = +

+

Directions: Solve the problems. Show your work. a

b

5. Rose had twelve flowers in her basket. Lily gave her seven more. How many did she have in all?

Pete picked 31 apples and 8 pears in the orchard. How many pieces of fruit did he have in all?

+

+

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 26

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Practice Addition Regrouping is a great skill that will help you add big numbers.

This place-value chart will help you understand regrouping.

Tens

Ones 1

26 + 9 35 Directions: Add. Remember to regroup. a

b

c

d

e

f

1.

19 + 7

25 + 6

53 + 7

49 + 9

64 + 8

27 + 8

2.

34 + 8

42 + 9

77 + 6

83 + 9

56 + 6

32 + 9

3.

15 + 7

67 + 9

26 + 8

45 + 6

73 + 9

44 + 8

4.

35 + 5

84 + 6

29 + 9

61 + 9

88 + 8

27 + 7

5.

27 + 6

39 + 3

76 + 8

82 + 9

48 + 7

73 + 8

6.

57 + 3

75 + 6

47 + 9

24 + 7

62 + 8

49 + 6

7.

67 + 3

54 + 7

85 + 5

73 + 7

87 + 9

79 + 5

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 27

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Add Numbers to 2 Digits Here come some bigger numbers. You’ve got it! Tens

Ones

1

34 +27 61 Directions: Add. Regroup when necessary. a

b

c

d

e

f

1.

47 +31

29 +43

17 +34

36 +21

57 +33

45 +25

2.

56 +25

63 +44

85 +12

27 +57

48 +47

67 +24

3.

89 +45

28 +93

46 +52

38 +59

62 +28

95 +13

4.

43 +76

78 +24

69 +32

85 +13

92 +36

72 +85

5.

57 +75

96 +25

38 +49

47 +56

84 +37

92 +49

6.

88 +56

73 +46

65 +29

83 +27

55 +44

19 +84

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 28

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Add Numbers to 3 Digits Isn’t addition fun when you know how?

Hundreds

Tens

Ones

1

4 31 + 95 526 Directions: Add. Regroup when necessary. a

b

c

d

e

f

1.

532 + 7

621 + 4

334 + 3

728 + 1

842 + 7

633 + 5

2.

768 + 8

439 + 5

626 + 7

894 + 5

931 + 9

774 + 8

3.

834 + 21

973 + 15

463 + 42

756 + 29

529 + 31

964 + 7

4.

339 + 6

723 + 54

697 + 3

489 + 13

708 + 44

646 + 35

5.

821 + 89

457 + 27

530 + 17

649 + 85

798 + 8

902 + 69

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 29

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Add Numbers to 3 Digits Look at you go. You’re on a roll! 11

736 +278 1, 014 Directions: Add. a

b

c

d

e

f

1.

336 +241

495 +403

248 +431

526 +313

107 +231

455 +214

2.

637 +119

763 +141

238 +235

497 +320

841 +129

644 +256

3.

379 +104

468 +517

603 +209

741 +195

845 +135

173 +485

4.

806 +114

531 +259

113 +592

627 +402

761 +129

454 +517

5.

509 +732

644 +308

295 +167

385 +499

563 +268

700 +156

6.

263 +648

741 +238

856 +231

928 +491

588 +276

719 +355

7.

365 +887

439 +763

976 +248

892 +158

733 +789

957 +949

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 30

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Add Numbers to 4 Digits Let’s add with 4-digit numbers. 11

6, 537 + 89 6, 626 Directions: Add. a

b

1.

1, 354 + 5

3, 947 + 8

2.

2, 785 + 7

3.

c

d

e

f

7, 625 + 5

6, 433 + 17

3, 294 + 9

4, 653 + 6

8, 764 + 8

2, 941 + 9

6, 345 + 36

4, 659 + 7

7, 534 + 47

9, 425 + 28

5, 648 + 5

7, 391 + 8

3, 554 + 26

4, 927 + 35

1, 367 + 7

4.

8, 671 + 32

2, 656 + 15

4, 925 + 25

3, 742 + 8

2, 955 + 7

1156 , + 28

5.

3, 829 + 56

4, 892 + 8

7, 634 + 29

1, 593 + 24

9, 843 + 62

5, 421 + 19

6.

4, 396 + 27

6, 946 + 49

8, 473 + 43

2, 665 + 78

3, 451 + 39

6, 726 + 84

7.

7, 356 + 17

5, 726 + 88

2, 748 + 93

3, 986 + 37

9, 423 + 49

8, 647 + 95

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 31

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Add Numbers to 4 Digits Wow! Adding is a breeze. 1

1

1, 907 + 438 2, 345 Directions: Add. a

b

c

d

e

f

1.

6, 345 + 122

4, 251 + 435

2,117 + 240

5, 443 + 316

7,142 + 510

8, 712 + 228

2.

7, 653 + 187

2, 754 + 163

5, 278 + 419

6, 778 + 215

4, 351 + 209

9, 046 + 827

3.

1, 459 + 376

3, 447 + 635

5, 507 + 668

4, 329 + 655

7, 627 + 891

1, 005 + 596

4.

3, 469 + 258

9, 476 + 184

6, 429 + 583

2,115 + 872

4, 479 + 235

8, 774 + 693

5.

8, 267 + 249

3, 952 + 670

4, 337 + 825

5, 674 + 608

9, 306 + 864

7, 752 + 168

6.

5, 927 + 374

3, 456 + 587

6, 047 + 971

1, 963 + 527

7, 019 + 796

5, 286 + 756

7.

4, 368 + 954

6, 528 + 795

7, 622 + 587

8, 576 + 537

2, 497 + 734

9, 468 + 839

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 32

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Add Numbers to 4 Digits Those are some big numbers! 1

1

3, 948 +8, 432 12, 380 Directions: Add. a

b

c

d

e

f

1.

6, 725 +1, 362

2, 763 +4, 218

1, 923 +5, 063

2, 468 +1, 220

6, 654 +2, 337

3, 604 +2, 471

2.

2, 903 +4,107

6, 439 +2,119

8, 837 +1, 154

4,125 + 3,687

5,123 +1, 982

7, 754 +1, 635

3.

1, 876 +4, 312

4, 356 +2, 718

7, 344 +1, 682

3,649 +6,192

4, 894 +2, 767

5, 610 +3, 798

4.

9, 085 +2, 513

3,458 +4,761

5,139 +1, 473

4, 428 +7,164

6, 243 +1, 827

5, 409 +2, 398

5.

4,566 +2,115

8, 429 +1, 087

5, 610 +2, 895

3,645 +3,761

4, 008 +7, 099

6, 481 +2, 329

6.

2, 459 +7, 365

4,127 + 3, 943

6, 084 +2, 756

5,434 +1, 978

7, 941 +1, 538

8,196 +1,375

7.

1, 825 +3, 679

4, 856 +2, 957

6, 528 +1, 775

8, 409 +8, 694

2, 887 +4, 678

9, 415 +2, 786

Name €

Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 33

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Practice Mixed Addition Now, let’s mix it up a little.

Directions: Add. Remember to regroup when necessary. a

b

c

d

e

f

1.

23 +35

142 + 45

73 +19

63 +33

371 + 24

46 +37

2.

456 + 9

28 +54

64 +81

163 + 29

75 +25

286 + 27

3.

39 +54

752 + 8

259 + 27

76 +48

577 + 9

635 + 23

4.

726 + 94

1, 543 + 5

644 + 95

533 + 91

6, 593 + 7

249 + 86

5.

4, 824 + 163

74 +59

238 + 73

493 + 7

1, 356 + 39

37 +76

6.

7, 365 + 5

928 + 47

538 + 8

8,641 + 229

655 + 78

7, 658 + 9

7.

3, 556 + 85

5, 964 + 128

4, 983 + 8

6, 489 + 24

2, 219 + 83

4, 486 + 145

8.

6,541 + 849

9, 644 +3, 856

1, 706 + 539

2, 415 +6, 395

5, 337 +8, 376

6, 438 +4, 065

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 34

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Practice Mixed Addition Wow! You’re like a calculator.

Directions: Add. a

b

c

d

e

f

1.

39 +56

84 +92

395 + 7

57 +74

44 +66

93 +27

2.

483 + 7

65 +48

29 +56

86 +27

246 + 9

42 +98

3.

619 + 86

75 +35

237 + 8

93 +47

236 + 38

63 +77

4.

146 + 57

2, 257 + 8

94 +87

508 + 25

459 + 9

335 + 66

5.

645 +192

426 +289

763 +457

3, 795 + 6

487 + 53

296 + 73

6.

3, 954 + 26

225 +486

7, 750 + 68

644 +895

1, 463 + 257

829 +196

7.

2,109 + 894

1, 762 + 358

8, 624 + 587

4, 662 + 89

9, 624 + 76

2, 699 + 157

8.

4, 276 + 852

2, 097 +8, 654

6, 035 + 972

4,761 + 309

1, 842 + 3, 654

9, 346 +3, 385

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 35

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Understand Subtraction Subtraction has to do with figuring out the difference between two groups.

If you take away 6 balls, how many will be left over? 15 – 6 = 9 0

1

2

3

4

5

6

7

8

9 10 11 12 13 14 15 16 17 18 19 20

Directions: Subtract. Use the number line to help you. a

b

c

d

1.

7− 3 =

6 −1=

4− 2 =

8− 6 =

2.

9− 4 =

10 − 0 =

8− 5 =

9− 2 =

3.

8− 2 =

4− 3 =

10 − 7 =

6− 5 =

4.

10 − 9 =

9− 7 =

5− 3 =

11− 4 =

5.

7− 0 =

5 −1=

2− 0 =

14 − 5 =

6.

10 − 7 =

13 − 8 =

9− 8 =

7− 6 =

7.

17 − 3 =

8− 3 =

14 − 7 =

16 − 4 =

8.

12 − 6 =

20 − 4 =

11− 7 =

18 − 14 =

9.

17 − 10 =

13 − 11 =

19 − 3 =

16 − 6 =

10.

20 − 15 =

18 − 7 =

11− 5 =

12 − 9 =

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 36

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Subtract Fast Facts Let’s work on some speed subtraction.

Work on memorizing these facts, and you’ll be on your way to subtracting big numbers. 18 – 7 = 11 Directions: Time yourself. Learn these facts by heart. a

b

c

d

e

f

1.

4− 3 =

7 −1=

6− 3 =

2 −1=

9− 8 =

10 − 5 =

2.

5− 0 =

3 −1=

8− 3 =

11− 7 =

6− 4 =

7− 4 =

3.

13 − 6 =

9− 5 =

10 − 7 =

12 − 3 =

8− 2 =

6− 5 =

4.

7− 6 =

12 − 8 =

13 − 5 =

9− 8 =

2− 0 =

10 − 2 =

5.

6− 2 =

0− 0 =

14 − 7 =

8− 7 =

4 −1=

11− 5 =

6.

13 − 3 =

10 − 9 =

15 − 6 =

9− 9 =

12 − 4 =

7− 3 =

7.

3− 2 =

14 − 3 =

16 − 9 =

1− 0 =

19 − 12 =

15 − 13 =

8.

20 − 3 =

17 − 16 =

13 − 6 =

14 − 11 =

18 − 15 =

10 − 4 =

9.

18 − 5 =

19 − 0 =

16 − 5 =

13 − 9 =

17 − 7 =

14 − 3 =

10.

17 − 6 =

15 − 2 =

14 − 12 =

20 − 19 =

18 − 2 =

16 − 10 =

11.

14 − 14 =

12 − 4 =

13 − 3 =

17 − 0 =

16 − 1 =

15 − 7 =

12.

19 − 10 =

16 − 5 =

12 − 2 =

15 − 13 =

20 − 11 =

18 − 17 =

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 37

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Practice Subtraction Time to practice subtracting in vertical form.

Here’s how to rewrite this number sentence in vertical form. 17 − 5 =

17 − 5 12

Directions: Rewrite in vertical form, then subtract. a

1.

b

19 − 7 =

15 − 3 = –

2.

25 − 2 =

–

38 − 7 =

46 − 6 =

27 − 3 = –

–

34 − 3 = –

4.

12 − 2 = –

– 3.

c

39 − 8 =

16 − 5 = –

–

55 − 3 = –

28 − 5 = –

–

Directions: Solve. Use vertical form. a

b

5. Deborah counted 29 geese in the lake.Then, 8 flew away. How many were left?

Eric bought 3 dozen, or 36, apples. Unfortunately, 6 of them were rotten. How many good apples did he have?

–

–

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 38

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Practice Subtraction Use the place value chart to understand regrouping in subtraction.

Tens Ones

312

42 − 7 35 Directions: Subtract. Remember to regroup. a

b

c

d

e

f

1.

21 − 6

43 − 4

65 − 9

33 − 7

26 − 8

58 − 9

2.

47 − 9

23 − 8

32 − 5

84 − 6

70 − 2

62 − 3

3.

54 − 7

37 − 9

21 − 2

46 − 8

93 − 4

72 − 9

4.

35 − 7

61 − 3

72 − 4

94 − 7

38 − 9

54 − 6

5.

40 − 3

55 − 6

81 − 9

37 − 8

72 − 3

93 − 5

6.

67 − 9

28 − 9

50 − 7

82 − 6

63 − 5

33 − 4

7.

96 − 7

70 − 9

62 − 8

94 − 5

32 − 6

44 − 9

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 39

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Recognize Fact Families Fact families are groups of numbers that work together.

5+3=8

8–3=5

3+5=8

8–5=3

Directions: Use the fact families to write an addition sentence and a subtraction sentence. a

b

c

1.

Fact family: 9, 4, 5 Addition: Subtraction:

Fact family: 7, 10, 3 Addition: Subtraction:

Fact family: 15, 9, 6 Addition: Subtraction:

2.

Fact family: 12, 6, 6 Addition: Subtraction:

Fact family: 3, 4, 7 Addition: Subtraction:

Fact family: 8, 1, 9 Addition: Subtraction:

3.

Fact family: 11, 5, 6 Addition: Subtraction:

Fact family: 13, 3, 10 Addition: Subtraction:

Fact family: 9, 5, 14 Addition: Subtraction:

4.

Fact family: 8, 6, 2 Addition: Subtraction:

Fact family: 19, 13, 6 Addition: Subtraction:

Fact family: 15, 7, 8 Addition: Subtraction:

5.

Fact family: 22, 11, 11 Addition: Subtraction:

Fact family: 31, 15, 16 Addition: Subtraction:

Fact family: 9, 7, 16 Addition: Subtraction:

6.

Fact family: 10, 34, 24 Addition: Subtraction:

Fact family: 5, 19, 14 Addition: Subtraction:

Fact family: 25, 7, 18 Addition: Subtraction:

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 40

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Check Addition and Subtraction A great way to check your math when you add or subtract is to use fact families. Check this addition problem using subtraction.

23 34 +11⇒ −11 34 23

Check this subtraction problem using addition.

63 42 −21⇒ +21 42 63

Directions: Add, then subtract to check your answer. a

b

c

d

1.

37 + 9

25 +13

49 + 9

36 +11

21 +15

2.

54 + 8

29 +10

33 +24

42 +14

62 +23

3.

47 +19

65 +35

26 +41

39 +18

58 +25

e

Directions: Subtract, then add to check your answer. a

b

c

d

e

4.

73 −26

55 −46

63 −27

42 −31

75 −53

5.

45 −17

39 −14

51 −38

28 −19

64 −47

6.

67 −36

78 −49

82 −57

44 −16

93 −28

Name €

Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 41

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Subtract Numbers to 2 Digits Keep it up.You’re going strong!

Tens Ones

411

51 −3 8 13

Directions: Subtract. Regroup when necessary. a

b

c

d

e

f

1.

34 −11

47 −26

28 −15

36 −27

53 −35

62 −48

2.

32 −29

57 −12

72 −56

41 −19

52 −28

35 −16

3.

68 −49

23 −18

36 −19

44 −28

56 −47

65 −38

4.

76 −53

82 −67

54 −45

91 −85

61 −27

72 −55

5.

93 −38

60 −41

27 −18

34 −15

81 −72

56 −29

6.

84 −57

32 −12

51 −48

62 −43

70 −32

95 −76

7.

40 −26

92 −62

71 −55

56 −27

85 −59

68 −39

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 42

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Subtract Numbers to 3 Digits Great job! Subtraction is fun. Hundreds

Tens

Ones

214

34 6 − 63 283

Directions: Subtract. a

b

c

d

e

f

1.

467 − 8

243 − 6

678 − 11

162 − 9

384 − 7

231 − 5

2.

343 − 12

876 − 8

266 − 17

485 − 9

227 − 31

455 − 62

3.

851 − 19

237 − 45

111 − 8

351 − 13

627 − 91

521 − 6

4.

655 − 26

147 − 53

345 − 8

243 − 61

859 − 82

776 − 29

5.

914 − 52

645 − 29

703 − 51

633 − 9

252 − 18

559 − 72

6.

431 − 50

285 − 7

642 − 71

957 − 85

850 − 23

728 − 32

7.

306 − 75

597 − 89

900 − 70

423 − 15

257 − 83

849 − 72

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 43

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Subtract Numbers to 3 Digits The numbers are getting bigger. You can do it! 2 12 Sometimes you have to 3 2 17 regroup more than 437 once. −2 5 8 17 9

Directions: Subtract. a

b

c

d

e

f

1.

543 −322

673 −451

836 −703

461 −235

569 −534

245 −103

2.

685 −394

727 −516

425 −313

546 −227

884 −591

633 −413

3.

873 −765

297 −143

467 −329

348 −256

519 −376

706 −493

4.

471 −180

562 −239

278 −199

785 −390

643 −498

925 −706

5.

644 −468

865 −193

258 −149

762 −458

925 −168

881 −476

6.

457 −238

943 −267

726 −539

464 −385

729 −562

266 −179

7.

733 −257

845 −768

921 −632

681 −293

566 −278

725 −128

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 44

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Subtract Numbers to 4 Digits Here we go with 4 digits. 1 15 5 15

3, 2 6 5 − 7 8 3, 1 8 7 Directions: Subtract. a

b

c

d

1.

1, 439 − 7

2, 488 − 13

4, 616 − 5

8, 624 − 4

7, 335 − 3

3,148 − 36

2.

4, 225 − 23

3, 670 − 9

2, 435 − 7

8,163 − 14

5, 351 − 60

1, 495 − 37

3.

1, 735 − 70

9, 332 − 19

6, 078 − 9

5, 417 − 52

2, 634 − 28

7, 735 − 9

4.

7, 243 − 51

6, 462 − 94

4, 215 − 35

8, 654 − 79

3, 241 − 37

5, 072 − 33

5.

9, 552 − 46

3,147 − 85

5, 360 − 55

6,157 − 78

1, 536 − 40

2, 752 − 93

6.

6, 503 − 52

4,117 − 43

2, 731 − 86

7, 915 − 27

8, 344 − 32

5, 643 − 74

7.

4, 735 − 89

2,136 − 47

8, 640 − 63

5, 442 − 73

7, 612 − 35

9, 347 − 79

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

e

f

Date 45

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Subtract Numbers to 4 Digits Subtraction can be such a useful tool! 1 14 615

2, 4 7 5 − 846 1, 6 2 9 Directions: Subtract. a

b

c

d

e

f

1.

3, 951 − 430

8, 563 − 151

5, 738 − 216

6, 414 − 313

8, 954 − 837

2, 559 − 446

2.

7, 719 − 382

1, 445 − 232

6, 425 − 623

5,109 − 107

2, 646 − 512

8, 362 − 301

3.

5, 336 − 425

6, 652 − 375

7, 638 − 417

1, 365 − 346

2,145 − 834

9, 851 − 943

4.

8, 951 − 426

3,157 − 623

4, 215 − 196

5,123 − 810

6, 548 − 639

3, 646 − 417

5.

7, 315 − 407

6,124 − 119

3, 217 − 553

2,115 − 306

8, 346 − 469

3, 346 − 772

6.

5, 521 − 438

3, 762 − 970

8, 632 − 746

6,128 − 309

1, 566 − 387

2, 345 − 676

7.

6, 624 − 839

2, 436 − 687

7, 640 − 895

9, 872 − 993

5, 213 − 345

4, 245 − 966

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 46

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Subtract Numbers to 4 Digits The numbers are bigger, but all you have to do is keep track of one place value column at a time. 61413 4 311

7, 5 4 1 − 3, 7 5 7 3, 7 8 4 Directions: Subtract. a

b

c

d

1.

6, 439 −1, 326

5, 314 −2,112

7, 392 −6, 074

4, 487 −3, 215

3, 691 −2, 460

9, 511 −7, 306

2.

5, 562 −1, 459

2, 369 −2,187

6, 273 −5, 429

3,189 −2, 863

4,162 −1, 438

7, 215 −3,108

3.

4, 461 −2, 085

3, 256 −1, 947

6, 443 −6, 289

7, 583 −2, 791

5, 723 −4, 814

9,128 −7, 309

4.

2,145 −1, 562

8, 343 −2, 915

4, 663 −3, 274

6, 591 −3, 847

8, 430 −2, 516

3, 315 −1, 462

5.

6, 548 −2,195

3, 197 − 2, 218

7, 216 −5, 309

8, 746 −2, 298

5, 637 −2, 849

9, 914 −7, 367

6.

2, 276 −1, 577

9, 541 −8, 765

5, 418 −4, 369

6, 521 −3, 333

7, 211 −2, 846

3, 263 −1, 974

7.

8, 825 −4, 957

6, 348 −1, 579

2,140 −1, 593

9, 615 −7, 687

5, 614 −2, 837

7, 761 −3, 965

Name €

Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

e

f

Date 47

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Practice Mixed Subtraction It’s practice time.

Directions: Subtract. Remember to regroup when necessary. a

b

c

d

e

f

1.

36 −15

95 −73

74 −31

86 −39

29 −17

47 −28

2.

67 −59

235 − 6

481 − 7

82 −67

35 −25

40 −13

3.

119 − 26

438 − 9

221 − 56

465 − 59

624 − 6

856 − 77

4.

414 −236

827 −119

336 − 47

641 −394

723 −536

553 −429

5.

6, 348 − 9

428 −349

7,153 − 82

8, 546 − 97

2,136 − 8

6, 614 − 35

6.

4, 563 − 9

6, 215 − 344

9,331 − 358

5, 327 − 84

4, 935 − 976

7, 250 − 79

7.

4, 675 − 89

5,461 − 395

8, 854 −2, 932

7, 653 − 498

6, 463 − 278

9,126 − 77

8.

3, 115 − 2,604

9,651 − 837

7, 417 −3, 854

2,671 − 395

5, 315 −1, 972

6, 431 −2, 915

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 48

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Practice Mixed Subtraction Stretch those skills.

Directions: Subtract. Remember to regroup when necessary. a

b

c

d

e

f

1.

68 −59

73 −38

440 − 26

94 −76

238 − 19

67 −49

2.

453 − 87

238 − 45

652 − 99

821 − 62

434 − 9

952 − 78

3.

658 − 29

540 − 76

223 −145

674 −439

776 −281

343 − 69

4.

847 −149

327 −309

9, 410 − 36

522 −339

2, 456 − 7

7, 345 − 67

5.

1146 , − 8

4, 634 − 75

8, 312 − 9

3,451 − 133

567 −197

644 −347

6.

9, 560 − 294

2, 734 −2, 687

4,159 − 83

7, 624 − 851

8, 631 − 144

5,127 − 78

7.

1143 , − 275

6, 594 − 398

3, 659 −1, 882

8, 423 − 795

5, 664 −2, 783

9, 457 −1, 369

8.

5, 495 −1, 567

4, 432 −3,168

7, 327 −6, 719

4, 332 − 195

3, 673 − 957

8, 633 −5, 752

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 49

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Add Three Numbers Adding three numbers is a lot like adding two. Just remember to add one place at a time. 1

17 131 + 224 372 Directions: Add. Don’t forget to regroup. a

b

c

d

1.

13 21 +44

32 12 +23

45 32 +11

131 46 + 25

203 47 + 13

82 231 +104

2.

62 14 +19

26 13 +41

120 342 + 37

237 40 + 51

43 24 +55

236 102 + 40

3.

73 24 +30

332 140 +415

26 83 +42

118 236 +205

621 133 + 220

146 22 +405

4.

745 107 + 43

271 305 +132

451 85 +213

27 432 +184

134 93 +430

620 141 +209

5.

68 240 +331

277 104 +312

601 235 +143

321 453 + 42

166 245 +403

524 123 +261

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

e

f

Date 50

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Solve Word Problems Word problems are fun because they tell a story.

When you solve a word problem, look for the key phrase that tells you which operation to use. Key phrases for addition: in all, altogether, total Key phrases for subtraction: how many more, left, difference

Directions: Solve. Hint: Underline the key phrase before you solve. 1. There were 25 people at the party, but 17 had to leave early. How many people were left at the party?

2. Katie is 132 centimeters tall, and Oscar is 151 centimeters tall.What is the difference in height between them?

3. Larissa and her dad went to the orchard to pick apples. Larissa picked 31 apples, and her dad picked 39. How many apples did they pick altogether?

4. Manuel has two books he wants to read. One is 46 pages long, and the other is 55 pages long. If he reads both books, how many pages will he have read in all?

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 51

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Solve Word Problems Sometimes it’s helpful to draw a picture when you are solving a word problem. Becky lives 26 miles from the mall, and Teresa lives 15 miles from the mall. How far will Becky have traveled if she goes to the mall and then to Teresa’s house? 26 + 15 = 41 miles

Directions: Solve. Underline the key words or draw a picture. 1. The Smith Building is 134 feet tall, and the Copley Building is 98 feet tall. How much taller is the Smith Building?

2. Jimmy is putting up a new clothesline that goes from the house to the tree in the backyard and from the tree to the garage. If the tree is 21 feet from the house and 19 feet from the garage, how much string should he buy to make the clothesline?

3. Sacramento is between Placerville and San Francisco along Highway 80. If San Francisco is about 92 miles from Sacramento and about 137 miles from Placerville, how far is Sacramento from Placerville?

4. Last year Paula was 123 centimeters tall, but she grew 12 centimeters. How tall is she now?

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 52

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Review Addition and Subtraction Let’s bring it all together with some practice.

Directions: Solve. a

b

c

d

e

f

1.

48 −36

18 +21

34 +52

73 −51

186 − 31

24 +35

2.

236 + 42

57 +24

217 − 15

189 − 57

76 −21

341 + 29

3.

247 + 57

423 − 72

240 − 36

133 + 45

94 −71

237 + 38

4.

119 − 50

344 −123

15 462 +519

325 +417

51 213 +126

524 −370

5.

4, 573 + 24

736 − 52

378 +144

34 322 + 86

9, 452 − 40

974 − 39

Directions: Solve. 6. Raquel counted 27 birds on the fence in her yard. An hour later there were 13 more. How many birds were there in all on the fence?

€

7. Yung has a collection of 78 baseball cards while Yuri has a collection of 113. How many more cards does Yuri have than Yung?

Name €

Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 53

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Review Addition and Subtraction Here’s a little more addition and subtraction.

Directions: Solve. a

b

c

d

e

f

1.

159 − 32

24 31 +14

233 + 54

73 −58

325 −103

49 +73

2.

1459 − 33

673 −145

43 12 +14

5, 621 − 9

18 23 +34

276 +114

3.

422 −305

27 32 +45

726 − 32

694 +208

766 +4, 317

23 402 + 54

4.

633 +947

826 −147

1748 , − 59

82 143 + 21

2185 , − 933

844 −195

5.

1, 499 +2, 381

2, 845 + 461

125 371 +150

2, 356 − 438

954 −788

7, 634 − 235

Directions: Solve. 6. Julie’s favorite candy store is 25 blocks from her house, and the art supply store is 17 blocks further on from the candy store. How many blocks will Julie have to walk to get from her house to the art supply store if she stops at the candy store on the way? € Name €

Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 54

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Find Equivalent Fractions By looking at the pictures you can tell that the fractions are equal.

1 2 1 21 2 = = = 2 4 2 42 4 Directions: Use the pictures to find the equivalent fraction. a

b

c

1 1 1 = = = 3 93 93 9

3 3 3 = = = 4 84 84 8

5 5 5 = = = 6 126 12 6 12

1 1 1 = = = 4 84 84 8

1 1 1 = = = 2 62 62 6

2 2 2 = = = 6 96 96 9

3 3 3 = = = 4 124 12 4 12

2 2 2 = = = 4 84 84 8

2 2 2 = = = 5 105 10 5 10

1 1 1 = = = 2 102 10 2 10

2 2 2 = = = 3 123 12 3 12

1 1 1 = = = 2 42 42 4

1.

2.

3.

4.

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 55

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Reduce Fractions To simplify a fraction, just find an equivalent fraction.

4 1 = 8 2

Directions: Use the pictures to help you simplify the fractions. a

b

c

4 = 6

2 = 8

2 = 4

3 = 9

2 = 10

8 = 12

4 = 12

6 = 9

4 = 10

6 = 12

8 = 10

3 = 12

1.

2.

3.

4.

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 56

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Add Fractions When you add fractions with the same denominators, all you have to do is add the numerators.

1 2 3 + = 8 8 8

Directions: Add the fractions. Shade the picture to figure out the answer. a

c

b

1.

1 2 + = 4 4

2 3 + = 7 7

5 2 + = 9 9

1 4 + = 6 6

5 6 + = 12 12

2 3 + = 8 8

7 2 + = 11 11

4 1 + = 9 9

5 1 + = 7 7

1 1 + = 3 3

5 2 + = 8 8

3 4 + = 10 10

2.

3.

4.

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 57

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Add Fractions Sometimes after you add fractions you need to simplify the sum.

1 5 6 2 + = = 9 9 9 3

Directions: Add the fractions, then simplify. a

c

b

1.

3 3 + = 8 8

=

1 3 + = 6 6

=

3 1 + = 10 10

6 1 + = 7 7

=

1 3 + = 8 8

=

5 3 + = 12 12

=

2 1 + = 9 9

=

4 4 + = 10 10

=

4 1 + = 5 5

=

=

2.

4 5 + = 12 12

=

3.

1 1 + = 6 6

=

4.

3 1 + = 12 12

=

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 58

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Subtract Fractions To subtract fractions with the same denominators, just subtract the numerators.

5 2 3 − = 7 7 7

Directions: Subtract the fractions. Use the picture to help you. a

c

b

1.

5 4 − = 6 6

7 2 − = 8 8

10 3 − = 12 12

3 2 − = 4 4

7 3 − = 9 9

2 1 − = 7 7

2 1 − = 3 3

9 2 − = 10 10

5 4 − = 8 8

8 3 − = 9 9

6 1 − = 8 8

6 4 − = 11 11

2.

3.

4.

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 59

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Subtract Fractions Sometimes, after subtracting, you can simplify the difference.

10 - 2 = 8 = 2 12 12 12 3

Directions: Subtract the fractions, then simplify. a

c

b

1.

11 1 − = 12 12

=

3 1 − = 4 4

=

5 3 − = 8 8

=

4 2 − = 6 6

=

7 3 − = 8 8

=

9 1 − = 10 10

=

8 2 − = 9 9

=

9 6 − = 12 12

=

8 3 − = 10 10

=

7 3 − = 12 12

=

7 1 − = 8 8

=

5 2 − = 6 6

=

2.

3.

4.

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 60

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Solve Word Problems How about some word problems with fractions?

6 There is ᎏ of Jackson’s birthday cake left in the refrigerator. If he and 10 3 his parents eat ᎏ more of the cake for dinner, how much will be left? 10 6 3 3 − = 10 10 10 Directions: Add or subtract fractions to solve the word problems. Draw a picture if you’d like. 2 1 1. Pedro ate ᎏ of a can of soup for lunch and ᎏ for dinner. How much soup 4 4 did he eat?

2 2. There are 9 chapters in the book Janine is reading. If she read ᎏ yesterday 9 3 and another ᎏ today, how much of the book did she read over the 2 days? 9

3. There is a set of 7 blocks on the table. 5 of the blocks are green and 2 are yellow.What fraction of the set of blocks is green?

3 4 4. Pauline had a party yesterday and ᎏ of the cheese pizza was left. ᎏ of 12 12 the mushroom pizza was left. She put the pieces together in the same box. What fraction of a pizza did she have left over? Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 61

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Solve Word Problems Now let’s add or subtract, then reduce.

1 5 Fiona had one can of paint that is ᎏ full and another that is ᎏ full. If 8 8 she combines the two cans of paint, how much will she have in all? 5 1 6 3 + = = 8 8 8 4

Directions: Add or subtract fractions to solve the word problems. Don’t forget to simplify your answer. 5 3 1. Collin had ᎏ of a jar of gumballs. He gave away ᎏ. How much did he have left? 6 6 2. While cleaning up his room, Joaquin noticed that he had one box of pencils that was 2 4 ᎏ full and another that was ᎏ full. If he decides to combine the boxes of pencils, 9 9 how full will the new box be? 3 7 3. Khalila had ᎏ of a pizza and she ate ᎏ. How much was left? 8 8 5 4. Joann and Inez decided to combine their packs of gum. If Joann had ᎏ of a pack 12 3 and Inez had ᎏ of a pack, how much do they have together? 12 7 5. Pete’s aunt gave him $11 for his birthday. If he spent ᎏ on baseball cards, how 11 much did he have left? Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 62

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Review Fractions Let’s practice adding and subtracting fractions.

Directions: Add or subtract. a

c

b

1.

3 1 + = 7 7

5 2 − = 10 10

5 4 − = 6 6

1 2 + = 5 5

3 5 + = 12 12

=

6 2 − = 9 9

10 4 − = 11 11

5 3 − = 8 8

=

1 1 + = 4 4

1 1 + = 3 3

9 6 − = 10 10

8 2 + = 12 12

=

4 1 + = 6 6

7 3 − = 8 8

=

2.

3.

=

4.

5.

2 4 + = 9 9 €

=

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 63

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Review Fractions Here’s some fraction review.

Directions: Compare the fractions using <, >, or =.

a

c

b

1.

2.

3.

Directions: Write a fraction and a decimal to tell how much is shaded. 4.

or

or

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

or

Date 64

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Understand Multiplication Multiplication is like repeated addition.

3 + 3 + 3 + 3 = 12 3 x 4 = 12 Directions: Add or multiply. a

b

1.

7 × 2 = 7 + 7 = ___

6 × 4 = 6 + 6 + 6 + 6 = ___

2.

9 × 3 = 9 + 9 + 9 = ___

8 × 1 = 8 = ___

3.

2 × 5 = 2 + 2 + 2 + 2 + 2 = ___

7 × 4 = 7 + 7 + 7 + 7 = ___

4.

4 × 0 = ___

9 × 2 = 9 + 9 = ___

Directions: Change the addition sentence into a multiplication sentence. Solve. b

a

5.

7 + 7 + 7 = _____ = ___

1 +1 +1 +1 +1 = _____ = ___

6.

4 + 4 + 4 + 4 + 4 = _____ = ___

5 + 5 + 5 = _____ = ___

7.

9 + 9 = _____ = ___

6 + 6 + 6 + 6 + 6 + 6 = _____ = ___

8.

8 + 8 + 8 = _____ = ___

2 + 2 + 2 = _____ = ___

9.

3 + 3 + 3 + 3 + 3 + 3 = _____ = ___

7 + 7 = _____ = ___

6 + 6 + 6 = _____ = ___

9 + 9 + 9 + 9 = _____ = ___

10.

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 65

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Multiply by 0 and 1 Remember these rules when multiplying by 0 and 1. When you multiply by 0, you always get 0. 9 x 0 = 0 When you multiply by 1, you always get the number you started with. 3x1=3 Directions: Multiply. a

b

c

d

e

1.

8 ×1

5 ×0

0 ×7

1 ×4

2 ×0

2.

3 ×0

1 ×2

6 ×0

9 ×1

1 ×0

3.

1 ×3

7 ×1

1 ×8

0 ×4

1 ×5

4.

7 ×0

5 ×1

4 ×1

0 ×2

0 ×6

5.

0 ×5

6 ×1

2 ×1

8 ×0

0 ×3

6.

1 ×1

4 ×0

1 ×7

0 ×5

0 ×0

7.

1 ×9

0 ×8

0 ×1

1 ×6

0 ×9

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 66

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Multiply Fast Facts Learning these fast facts will make you a multiplication whiz!

Directions: Time yourself. Learn these facts by heart. a

b

c

d

e

1.

2 ×1

2 ×2

2 ×3

2 ×4

2 ×5

2.

2 ×6

2 ×7

2 ×8

2 ×9

2 ×10

3.

3 ×1

3 ×2

3 ×3

3 ×4

3 ×5

4.

3 ×6

3 ×7

3 ×8

3 ×9

3 ×10

5.

4 ×1

4 ×2

4 ×3

4 ×4

4 ×5

6.

4 ×6

4 ×7

4 ×8

4 ×9

4 ×10

7.

5 ×1

5 ×2

5 ×3

5 ×4

5 ×5

8.

5 ×6

5 ×7

5 ×8

5 ×9

5 ×10

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 67

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Multiply Fast Facts Once you memorize these fast facts, you’ll be on your way.

Directions: Time yourself. Learn these facts by heart. a

b

c

d

e

1.

6 ×1

6 ×2

6 ×3

6 ×4

6 ×5

2.

6 ×6

6 ×7

6 ×8

6 ×9

6 ×10

3.

7 ×1

7 ×2

7 ×3

7 ×4

7 ×5

4.

7 ×6

7 ×7

7 ×8

7 ×9

7 ×10

5.

8 ×1

8 ×2

8 ×3

8 ×4

8 ×5

6.

8 ×6

8 ×7

8 ×8

8 ×9

8 ×10

7.

9 ×1

9 ×2

9 ×3

9 ×4

9 ×5

8.

9 ×6

9 ×7

9 ×8

9 ×9

9 ×10

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 68

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Multiply by 2, 5, and 10 Remember these rules when multiplying by 2, 5, or 10.

When you multiply by 2, the product is always even. 2 x 9 = 18 When you multiply by 5, the product always ends in 0 or 5. 5 x 3 = 15 5 x 6 = 30 When you multiply by 10, the product always ends in 0. 10 x 4 = 40

Directions: Multiply. a

b

c

d

1.

4 ×2

5 ×0

4 ×10

10 × 7

4 ×5

10 × 3

2.

1 ×2

3 ×5

10 × 2

8 ×5

5 ×2

6 ×5

3.

2 ×10

5 ×5

2 ×1

6 ×2

10 ×10

10 ×1

4.

2 ×5

10 × 0

7 ×5

2 ×9

5 ×3

2 ×8

5.

3 ×10

5 ×1

9 ×10

0 ×10

5 ×6

5 ×8

6.

2 ×6

5 ×4

5 ×9

7 ×2

2 ×2

1 ×5

7.

10 × 4

0 ×2

5 ×7

1 ×10

10 × 2

10 × 5

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

e

f

Date 69

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Multiply 1-Digit Numbers Let’s practice those multiplication skills one more time.

Directions: Multiply. a

b

c

d

e

f

1.

4 ×4

5 ×9

3 ×2

7 ×6

5 ×10

6 ×6

2.

8 ×1

3 ×7

8 ×6

5 ×0

2 ×9

4 ×3

3.

8 ×5

10 × 6

1 ×9

10 × 0

4 ×7

9 ×6

4.

5 ×5

4 ×9

0 ×8

10 × 9

8 ×7

6 ×1

5.

8 ×10

7 ×5

9 ×9

2 ×7

5 ×4

10 × 4

6.

3 ×0

9 ×7

6 ×5

3 ×9

7 ×7

3 ×1

7.

9 ×0

0 ×7

8 ×8

3 ×5

6 ×2

2 ×8

8.

4 ×6

3 ×10

10 ×10

1 ×7

4 ×1

9 ×8

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 70

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Understand Properties of Multiplication Multiplication has a lot of cool properties.

The Distributive Property says that if you are multiplying a number by two other numbers that are added together, you can multiply by each number and then add.

5 x 4 = 20

{

(2 x 3) x 4 = 2 x (3 x 4) 6 x 4 = 24

2 x 12 = 24

5 x (4 + 3) = 5 x 4 + 5 x 3

{ { {

The Associative Property says that you can change how numbers are grouped when you multiply.

4 x 5 = 20

{

The Commutative Property says that you can multiply numbers in either order.

5 x 7 = 35

20 + 15 = 35

Directions: Use the Commutative Property to solve. a

b

1. 4 x 7 =

x

=

9x2=

x

=

2. 3 x 5 =

x

=

6x4=

x

=

Directions: Use the Associative Property to regroup the numbers. a

b

3. (3 x 7) x 2 =

(9 x 2) x 4 =

4. 2 x (6 x 9) =

5 x (7 x 4) =

Directions: Use the Distributive Property to rewrite the number sentence. a

b

5. 6 x (3 + 2) =

x

+

x

8 x (5 + 9) =

x

+

x

6. (2 + 5) x 6 =

x

+

x

(7 + 3) x 9 =

x

+

x

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 71

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Multiply 2 Digits by 1 Digit When you multiply a 1-digit number by a 2-digit number, multiply the 1-digit number by the value of each place in the 2-digit number. 41 × 3 3 (3 ×1 = 3) +120 (3 × 40 = 120) 123 (3 +120 = 123) Directions: Multiply. a

b

c

d

e

f

1.

12 × 4

23 × 2

34 × 2

53 × 3

61 × 5

24 × 2

2.

81 × 7

32 × 3

23 × 3

64 × 2

51 × 9

73 × 2

3.

52 × 2

44 × 2

91 × 6

53 × 2

61 × 5

94 × 2

4.

83 × 3

31 × 7

62 × 3

73 × 2

84 × 2

22 × 4

5.

72 × 3

63 × 3

54 × 2

92 × 2

81 × 8

74 × 2

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 72

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Multiply 2 Digits by 1 Digit Check out this multiplication problem. 24 × 6 24 (6 × 4 = 24) +120 (6 × 20 = 120) 144 (24 +120 = 144) Directions: Multiply. a

b

c

d

e

f

1.

62 × 7

35 × 4

84 × 3

26 × 5

53 × 8

72 × 6

2.

24 × 6

83 × 7

68 × 2

45 × 3

92 × 7

33 × 6

3.

73 × 8

52 × 9

34 × 7

28 × 4

63 × 5

82 × 6

4.

36 × 7

47 × 5

84 × 8

29 × 3

75 × 5

94 × 3

5.

86 × 5

59 × 8

62 × 6

46 × 3

98 × 4

79 × 9

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 73

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Multiply 3 Digits by 1 Digit As the numbers get bigger, just remember to multiply the 1-digit number by the value of each place in the 3-digit number.

Directions: Multiply.

a

b

c

d

e

f

1.

724 × 2

312 × 4

632 × 3

421 × 3

733 × 2

822 × 4

2.

523 × 3

711 × 9

314 × 2

841 × 2

631 × 3

244 × 2

3.

613 × 3

142 × 2

512 × 3

734 × 2

842 × 2

922 × 3

4.

443 × 2

811 × 6

733 × 3

524 × 2

644 × 2

231 × 3

5.

713 × 2

523 × 3

243 × 2

314 × 2

611 × 5

821 × 3

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 74

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Multiply 3 Digits by 1 Digit Keep up the great work!

Directions: Multiply.

a

b

c

d

e

f

1.

437 × 5

635 × 4

756 × 3

261 × 7

527 × 4

833 × 5

2.

275 × 6

334 × 7

859 × 3

628 × 4

455 × 9

736 × 6

3.

526 × 9

483 × 3

792 × 6

373 × 5

944 × 7

853 × 4

4.

364 × 8

795 × 3

538 × 7

829 × 9

473 × 4

287 × 8

5.

447 × 7

965 × 5

372 × 9

741 × 8

874 × 5

566 × 4

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 75

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Multiply 4 Digits by 1 Digit You can use the same technique with 4-digit numbers that you used with 3-digit numbers.

Directions: Multiply.

a

b

c

d

e

f

1.

5, 414 × 2

7, 322 × 3

2,113 × 3

8, 232 × 4

5, 432 × 2

6,111 × 8

2.

4, 221 × 4

6, 332 × 3

7, 011 × 9

5, 243 × 2

7, 231 × 3

8, 441 × 2

3.

5,113 × 3

8, 243 × 2

9, 413 × 2

6, 021 × 4

4, 332 × 3

3, 244 × 2

4.

2, 211 × 4

5,101 × 7

7, 313 × 3

9,121 × 4

6, 434 × 2

8,144 × 2

5.

6, 233 × 3

3, 221 × 4

8, 442 × 2

9,111 × 8

4, 210 × 4

5, 332 × 3

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 76

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Multiply 4 Digits by 1 Digit Here are some more big numbers. Give it a try.

Directions: Multiply.

a

b

c

d

e

f

1.

5, 247 × 3

7,146 × 6

3, 554 × 7

8, 924 × 4

4, 636 × 5

2, 880 × 7

2.

7, 633 × 8

4, 275 × 3

3148 , × 7

8, 609 × 5

9, 416 × 4

5, 225 × 6

3.

9, 807 × 2

8, 634 × 6

2175 , × 4

4, 063 × 5

3, 951 × 8

7, 652 × 9

4.

5, 468 × 4

6, 047 × 9

1593 , × 6

4,119 × 2

6, 840 × 8

3174 , × 7

5.

8, 963 × 4

7,184 × 3

9, 920 × 9

1673 , × 7

4, 056 × 6

2, 478 × 8

€ Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 77

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Practice Multiplication You zipped through another section, and now it’s practice time again.

Directions: Multiply.

a

b

c

d

e

f

1.

54 × 2

63 × 3

82 × 4

21 × 5

35 × 6

43 × 2

2.

71 × 8

33 × 2

28 × 4

132 × 4

43 × 6

82 × 2

3.

423 × 3

207 × 5

62 × 8

733 × 2

84 × 7

811 × 6

4.

231 × 3

611 × 5

240 × 6

825 × 7

433 × 3

509 × 4

5.

4,122 × 3

370 × 7

431 × 2

823 × 4

1173 , × 3

6, 450 × 6

€ Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 78

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Practice Multiplication The more you practice, the easier it gets.

Directions: Multiply.

a

b

c

d

e

f

1.

85 × 7

37 × 6

29 × 8

146 × 5

72 × 9

456 × 2

2.

344 × 7

643 × 5

76 × 3

455 × 7

83 × 9

630 × 5

3.

481 × 4

1561 , × 7

346 × 6

2, 409 × 5

754 × 8

628 × 3

4.

4,158 × 6

133 × 9

563 × 7

2, 485 × 4

7, 036 × 5

1609 , × 7

5.

8, 841 × 5

2, 615 × 4

7, 892 × 7

3, 605 × 9

4,163 × 8

6, 652 × 6

€ Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 79

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Understand Division If you have 8 pieces of candy, and you want to divide them evenly among 4 friends, use division. 2 4 8

)

8÷4 = 2 Division is the inverse of multiplication. 6÷2= 3

6 = 2× 3

Directions: Solve. a

1.

4 ×6 6 24 24

5 ×4 4 20 20

9 ×3 3 27 27

7 ×8 8 56 56

6 ×9 9 54 54

6 ×6 6 36 36

5 ×8 8 40 40

8 ×3 3 24 24

9 ×4 4 36 36

6 ×7 7 42 42

8 ×8 8 64 64

4 ×7 7 28 28

7 ×7 7 49 49

9 ×5 5 45 45

3 ×7 7 21 21

5 ×5 5 25 25

8 ×4 4 32 32

9 ×2 2 18 18

4 ×4 4 16 16

)

3.

)

4.

)

€ 5.

d

7 ×5 5 35 35

)

2.

c

b

)

)

)

)

) )

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

)

)

)

)

)

)

)

)

)

)

Date 80

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Divide Fast Facts Practice these division problems to sharpen your skills.

Directions: Divide. a

1.

2.

3.

4.

5.

6.

7.

€

€

8.

b

c

d

e

22

)

24

)

26

)

28

)

2 10

2 12

)

2 14

)

2 16

)

2 18

)

2 20

33

)

36

)

39

)

3 12

)

3 15

3 18

)

3 21

)

3 24

)

3 27

)

3 30

4 4

)

4 8

)

4 12

)

4 16

)

4 20

)

4 28

)

4 32

)

4 36

)

4 40

55

)

5 10

)

5 15

)

5 20

)

5 25

)

5 35

)

5 40

)

5 45

)

5 50

4 24

5 30

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

)

)

) )

) )

) )

Date 81

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Divide Fast Facts With this you’ll know your fast facts up to 9.

Directions: Divide. a

1.

2.

3.

4.

5.

6.

7.

€

8.

b

c

d

66

)

6 12

)

6 18

)

6 24

)

6 30

6 36

)

6 42

)

6 48

)

6 54

)

6 60

7 7

)

7 14

)

7 21

)

7 28

)

7 35

7 42

)

7 49

)

7 56

)

7 63

)

7 70

8 8

)

8 16

)

8 24

)

8 32

)

8 40

)

8 56

)

8 64

)

8 72

)

8 80

99

)

9 18

)

9 27

)

9 36

)

9 45

)

9 63

)

9 72

)

9 81

)

9 90

8 48

9 54

Name €

e

Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

)

)

) ) ) )

) )

Date 82

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Divide by 2, 5, and 10 Remember these rules when dividing by 2, 5, or 10.

Even numbers are always evenly divisible by 2. 16 ÷ 2 = 8 Numbers that end in 0 or 5 are always evenly divisible by 5. 35 ÷ 5 = 7 40 ÷10 = 4

Numbers that end in 0 are always evenly divisible by 10.

Directions: For each number, write 2, 5, and/or 10 if the number is divisible by 2, 5, or 10. a

b

1.

625 _____

38 _____

320 _____

2.

342 _____

2165 , _____

94 _____

3.

720 _____

805 _____

5, 000 _____

4.

64 _____

228 _____

435 _____

5.

1, 200 _____

825 _____

7, 202 _____

b

c

c

Directions: Divide. a

€ €

6.

20 ÷ 2 =

18 ÷ 9 =

50 ÷ 5 =

7.

25 ÷ 5 =

70 ÷ 7 =

10 ÷ 5 =

8.

40 ÷ 4 =

16 ÷ 8 =

35 ÷ 7 =

9.

30 ÷ 3 =

30 ÷ 6 =

30 ÷10 =

10.

12 ÷ 6 =

45 ÷ 9 =

90 ÷ 9 =

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 83

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Check Multiplication and Division Practice using multiplication to check your division skills.

6 7 42 → 7 × 6 = 42

)

Directions: Divide, then write a multiplication sentence to check your work. a

1.

2.

3.

4.

5.

6.

7.

8.

b

c

3 18

)

7 42

)

4 16

6 48

)

8 32

)

2 18

)

9 81

)

5 35

3 15

)

7 63

)

6 36

2 16

)

4 32

)

10 80

8 72

)

5 45

)

4 28

7 49

)

9 54

)

3 27

)

8 64

)

9 72

10 50

6 30

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

)

)

)

)

)

)

)

)

Date 84

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Divide 2 Digits by 1 Digit Time to put those skills into action.

Directions: Divide. a

1.

2.

3.

4.

5.

6.

7.

€

8.

b

c

d

)

9 18

6 24

)

4 32

)

18

)

8 64

)

2 16

5 45

)

4 20

6 48

)

3 15

7 63

)

4 16

)

8 56

2 14

)

5 20

)

)

3 30

)

6 42

5 40

)

6 12

)

)

2 10

)

9 27

)

9 72

)

3 24

7 49

4 36

6 36

)

Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

)

)

)

3 18

)

9 54

5 10

)

6 30

)

3 12

)

8 72

)

4 24

39

)

4 12

)

5 25

)

3 21

)

2 18

)

5 35

)

2 12

Name €

e

)

)

)

)

) )

Date 85

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Divide 2 Digits by 1 Digit As the dividend gets larger, you can use this technique. 14 6 84 −60 24 −24 0

)

Directions: Divide. a

b

d

e

)

8 96

)

2 58

)

5 80

)

6 72

3 93

)

4 76

)

7 91

)

2 84

)

5 65

6 84

)

7 98

)

3 63

)

8 88

)

4 96

7 84

)

2 36

)

4 64

)

3 57

)

5 95

)

7 77

)

5 70

)

2 92

)

6 66

1.

4 72

2.

3.

4.

5.

4 52

Name €

c

Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

)

)

)

)

)

Date 86

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Divide 3 Digits by 1 Digit You can use the same technique with a 3-digit dividend. 62 4 248 −240 8 −8 0

)

Directions: Divide. a

b

c

d

e

)

3 249

)

5 250

)

2 126

)

5 345

)

8 688

)

3 147

)

3 255

)

4 236

)

5 415

)

7 574

)

2 192

)

6 438

)

8 736

)

4 384

)

5 140

)

7 217

)

9 279

)

2 118

)

4 328

)

2 174

1.

8 168

2.

4 324

3.

6 426

4.

3 168

5.

9 846

Name €

Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

)

) )

)

)

Date 87

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Divide 3 Digits by 1 Digit In this case the quotient has 3 digits too. 124 7 868 −700 168 −140 28 −28 0

)

Directions: Divide. a

b

c

d

e

1.

4 632

)

8 872

)

2 736

)

3 852

)

6 924

2.

5 685

)

9 963

)

7 945

)

4 576

)

3 645

3.

6 762

)

8 912

)

2 588

)

5 830

)

6 876

4.

7 973

)

4 856

)

9 981

)

3 567

)

2 926

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

)

)

)

)

Date 88

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Divide 4 Digits by 1 Digit Now divide with a 4-digit dividend. 757 3 2271 −2100 171 −150 21 −21 0

)

Directions: Divide. a

b

c

d

e

1.

6 1476

)

2 1738

)

5 4315

)

4 2156

)

3 2589

2.

4 3216

)

6 5310

)

8 1160

)

2 1562

)

7 6566

3.

5 3170

)

9 8631

)

3 1155

)

4 2712

)

2 1334

4.

6 5298

)

7 4459

)

2 1854

)

8 6736

)

3 2685

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

)

)

)

)

Date 89

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Divide 4 Digits by 1 Digit Excellent work! Keep it up. 1537 5 7685 −5000 2685 −2500 185 −150 35 −35 0

)

Directions: Divide. a

b

c

d

e

1.

6 8574

)

2 5742

)

4 7216

)

3 8538

)

7 9541

2.

5 7105

)

8 9792

)

6 7548

)

9 9063

)

4 6196

3.

2 9158

)

3 7548

)

5 6210

)

8 9488

)

6 9156

4.

4 5948

)

9 9585

)

2 7656

)

5 8745

)

3 9561

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

)

)

)

)

Date 90

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Practice Mixed Division Let’s bring it all together with some practice.

Directions: Divide. a

b

c

)

36

)

5 15

)

19

)

10 30

4 32

)

6 126

)

8 48

7 91

)

3 252

)

9 396

)

5 725

)

2 942

)

3 471

)

6 2154

1.

8 24

2.

3 27

3.

4.

5.

8 432

6.

9 927

)

)

d

e

)

)

112

3 18

7 35

)

9 63

)

)

)

7 364

5 65

)

)

10 60

)

6 78

)

7 525

)

8 952

)

)

4 336

)

)

2 1724

)

€

Name €

Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 91

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Practice Mixed Division Looks like division is right up your alley!

Directions: Divide. a

b

c

d

1.

2 56

)

5 85

)

3 72

)

7 98

2.

6 564

)

8 96

)

2 246

)

5 615

3.

4 592

)

5 750

)

7 504

)

2 932

4.

3 522

)

9 6741

)

8 920

)

4 748

5.

7 3311

)

6 852

)

3 4110

)

4 936

6.

2 7616

)

9 2412

)

8 9544

)

3 7038

e

)

4 64

)

)

3 99

)

6 444

)

2 1358

)

5 4135

)

7 5516

)

) )

)

)

€

Name €

Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 92

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Solve Word Problems When you use multiplication and division to solve word problems, just look for the key words that tell you which to use.

Directions: Solve. 1. Heidi has 7 flower baskets. She would like to put 12 dandelions in each basket. How many dandelions will she have to pick in all?

2. Frankie has 64 marbles and 8 bags. If he separates the marbles equally between the bags, how many marbles will be in each bag?

3. The Corner Store is open 11 hours a day, 7 days a week. How many hours is it open per week?

4. Kwan is participating in a walk-a-thon in which he has to walk 3 miles a day for a month to complete his goal. If there are 31 days in the month, how many miles will he need to walk in order to reach his goal?

5. Vanessa needs 56 beads to make some necklaces. If the beads come in bags of 7 beads, how many bags will she need?

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 93

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Solve Word Problems Here are more word problems to make you a pro!

Directions: Solve. 1. The school library just got a new bookcase that has 9 shelves. If the librarian wants to put 126 books in the bookcase, how many books should he put on each shelf?

2. For 5 nights in a row the play sold out. If there are 214 seats in the theater, how many tickets were sold over the 5 nights?

3. Amir bought 8 boxes of crayons with 36 crayons in a box. How many did he buy in all?

4. Taheesha, June, Mike, and Jacob are driving 348 miles to New York City. If they split up the driving equally among them, how much will each of them have to drive?

5. Bliss is excited to read her new book. It is 234 pages long. If she wants to finish reading the book in 6 days, how many pages will she have to read each day?

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 94

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Review Multiplication and Division It’s review time again. Let’s see how quickly you can zip through these problems.

Directions: Solve. a

b

c

d

e

1.

9 ×7

24 × 2

7 42

)

5 35

)

10 × 9

2.

1 35

)

13 × 3

32 × 4

9 81

)

6 54

3.

41 × 5

7 147

)

4 48

)

17 ×1

422 × 3

4.

6 252

)

52 × 4

3 75

)

633 × 3

8 184

5.

2 734

)

9 198

)

543 × 2

704 × 2

7 259

6.

301 × 9

8, 214 × 2

5 145

832 × 3

6 2706

)

)

)

)

)

€ Name €

Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 95

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Review Multiplication and Division One more round of multiplication and division.

Directions: Solve.

a

b

c

d

e

1.

5 65

73 × 6

47 × 8

2 52

9 72

2.

631 × 7

5 435

)

495 × 2

153 × 9

3 654

3.

256 × 6

395 × 3

7 679

4.

8 672

588 × 4

5.

927 × 2

6.

6 3432

)

)

)

€

€

)

)

)

9 288

307 × 5

2 3412

)

6, 034 × 3

7 518

5 425

2, 762 × 8

453 × 6

7 8330

7, 034 × 5

9 1575

)

)

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

)

)

) )

)

4, 281 × 4

3 7401

Date 96

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Count and Write Money Learn how to count money so that you can keep good track of yours! = = = =

1 1 1 1

penny = 1¢ = $0.01 › count by 1s nickel = 5¢ = $0.05 › count by 5s dime = 10¢ = $0.10 › count by 10s quarter = 25¢ = $0.25 › count by 25s

Directions: Write how much money is shown. a

b

1. $0.05

$0.10

$0.15

$0.16

2.

Directions: Write how much money is shown.

3.

4.

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 97

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Count and Write Money Now we’re getting into the big bucks.

= 1 dollar = $1.00

= 10 dollars = $10.00

= 5 dollars = $5.00

= 20 dollars = $20.00

Directions: Write how much money is shown. a

b

1.

2.

3.

Directions: List the bills and coins you would need to buy these items. 4.

$8.43

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

$24.30

Date 98

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Add and Subtract Money Now we’re ready to start buying.

Jana bought a hat for $6.00 and a scarf for $11.50. How much did she spend? $6.00 +$11.50 $17.50 Directions: Calculate how much it would cost to buy the following items. Remember to line up the decimal points. $7.00

$14.00

a

$9.50

b

1. A bear and a monkey

2 bears

2. An elephant and a monkey

2 monkeys

Directions: Pretend you have $29.50 in your pocket. Calculate how much you would have left if you bought the following items. a

b

3. An elephant

A monkey

4. A bear

2 monkeys

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 99

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Add and Subtract Money Sometimes you have to regroup when you add or subtract money.

Ori bought a plant for $6.35 and a watering can for $8.75. How much did he spend? 1 1 $ 6 . 35 + $ 8 .75 $15 .10 Directions: Calculate how much the following items would cost.

$8.55

$.60

$17.70

a

$3.65

b

1. A robot and a computer

A yo-yo and a pack of gum

2. A pack of gum, a computer, and a robot

2 yo-yos and a robot

Directions: Now pretend you have $25.50 in your pocket. Calculate how much you would have left over if you bought the following items. a

b

3. A computer

A pack of gum

4. A robot

A yo-yo and a pack of gum

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 100

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Multiply and Divide Money When you multiply and divide with money, remember to place the decimal point correctly. $1.32 × 3 6 90 +300 $3.96

Ali bought 3 bags of candy for $1.32 each. How much did he spend?

Directions: Multiply to figure out the total cost. Chocolates

Jelly Beans

$2.22

Candy Bears

Gum Balls

$1.30

a

$.44

$3.12

b

1. 2 bags of gumballs

3 bags of jelly beans

2. 4 bags of chocolates

3 bags of candy bears

Directions: Divide to figure out how much a bag would cost per person. a

b

3. A bag of jelly beans for 5 people

A bag of candy bears for 8 people

4. A bag of chocolates for 6 people

A bag of gumballs for 4 people

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 101

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Multiply and Divide Money Remember to keep an eye on those decimal points.

Directions: Solve. a

b

c

d

e

1.

$3.45 × 6

$4.73 × 4

$6.75 × 7

$5.61 × 3

$3.96 × 2

2.

$7.63 × 5

$5.24 × 8

$8.44 × 9

$2.67 × 4

$5.88 × 6

3.

$16.43 × 2

$21.52 × 7

$17.40 × 3

$36.21 × 5

$24.35 × 8

4.

6 $3.72

5.

8 $5.92

6.

2 $17.04

)

5 $8.45

)

2 $4.56

)

7 $2.66

)

4 $23.12

)

4 $7.04

)

9 $6.48

)

3 $40.71

)

6 $9.06

)

7 $37.66

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

)

3 $5.61

)

)

5 $7.35

)

8 $13.28

)

)

Date 102

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Solve Word Problems Use these word problems to practice for real-life situations.

Directions: Solve using addition or subtraction.

1. Zarina had $5.46 in her pocket when she left home, but now she has only $3.31. How much did she spend?

2. Dr. Moreira went out to lunch with his son. He had a hamburger for $4.99, and his son had a hotdog for $3.59. How much did they spend on lunch?

3. Alexander bought a shirt and a pair of pants for $15.60. If the pants cost $7.30, how much did the shirt cost?

4. Kalila works at a restaurant. She made $24.00 in tips on Friday night and $35.00 in tips on Saturday night. Between the two nights, how much did she earn in tips?

5. In preparation for the party, Amir bought the following items: candles for $1.59, balloons for $3.45, and favors for $6.50. How much did he spend?

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 103

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Solve Word Problems Here are some money problems with multiplication and division.

Directions: Solve using multiplication or division.

1. Keisha, Aaron, Phillip, and Omar were given a $25.00 reward for finding the lost dog. How much did each of them make?

2. Florencia is going to be paid $9.50 per day for feeding her neighbor’s cat. If she takes care of the cat for 6 days, how much will she make?

3. Selima wants to send postcards to 4 of her friends. If it costs $0.26 to send one, how much will it cost her to send all 4?

4. Five friends went out to dinner. The bill was $27.35. If they split the bill evenly among the five of them, how much will each person owe?

5. At the gas station, the gas is $1.82 per gallon. How much will 7 gallons cost?

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 104

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Review Money Time to practice those money skills.

Directions: Solve. a

b

c

d

e

1.

$6.31 +$2.54

6 $5.52

$12.39 −$1.07

$3.44 × 7

$8.23 +$7.36

2.

$9.46 +$7.42

$4.73 × 4

$2.88 +$7.34

$23.05 −$2.54

3 $8.58

3.

$6.24 × 5

$15.62 −$11.70

7 $4.62

$8.54 −$3.92

$6.07 × 8

4.

$9.44 +$3.27

2 $7.84

$4.85 × 4

$24.35 −$4.99

5 $6.20

5.

$7.36 −$5.42

$8.27 +$3.56

9 $7.65

$4.79 × 7

$6.48 +$11.26

6.

4 $7.36

$2.45 × 9

$18.23 −$8.50

$2.76 +$9.44

$9.46 +$9.37

)

)

)

)

)

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

)

)

Date 105

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Review Money Money, money, and more money!

Directions: Solve. a

b

c

1.

4 $6.32

$9.55 −$7.62

$5.63 +$6.41

2.

$11.26 +$ 4.37

$9.43 × 7

3.

$11.47 × 2

4.

)

e

)

$8.45 × 5

6 $9.84

8 $9.28

$7.94 +$3.27

$17.83 −$ 7.56

$8.07 −$6.13

$7.13 −$6.99

9 $7.38

$4.35 −$4.27

5 $14.35

$9.26 × 3

$7.35 −$5.46

$ 7.33 +$12.84

$5.93 × 9

5.

$23.51 − $ 2.60

$6.97 +$8.46

3 $19.05

$11.52 +$11.64

$13.74 × 5

6.

$25.03 × 7

$26.13 −$ 7.54

$15.27 +$ 8.76

2 $15.26

)

)

)

Name €

d

Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

)

)

$34.20 −$16.17

Date 106

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Write Number Sentences A number sentence has two equal sides.

Directions: Complete the number sentence. a

+ 7 = 10

1.

= 16

2.

11+

3.

12 − 4 =

= 24

5.

8×

6.

12 × 5 =

8.

24 ÷

9.

4

10.

27

11. 12.

=8

=3 4 = 16

3+ 9 =

12 + 10 =

+1= 9

10 −

=3

14 −

=6

7− 6 =

4× 4 =

× 5 = 35

× 5 = 45

÷7= 7

7.

6+

− 6 =1

−3= 9

4.

c

b

63 ÷

=7

8×

= 40

8÷ 2 =

36 ÷ 3 =

÷ 10 = 4

4

4=0

4

4 =1

9=3

55

10 = 45

8

9 = 17

6

5 = 30

12

4 = 16

10

6=4

13

3 = 39

27

6 = 21

7

6 = 42

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 107

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Describe Patterns What’s the rule for the pattern?

4, 8, 12, 16, 20 4 + 4 = 8, 8 + 4 = 12, 12 + 4 = 16, 8 + 4 = 16, 16 + 4 = 20 The rule is "add 4." 4 is added to each number to get the next number. Directions: Write the rule for the pattern. a

b

1. 3, 6, 9, 12, 15, 18

50, 44, 38, 32, 26

2. 25, 20, 15, 10, 5, 0

90, 100, 110, 120, 130

3. 1, 2, 4, 8, 16, 32

243, 81, 27, 9, 3

4. 10, 10, 11, 13, 16, 20

2, 8, 32, 128, 512

5. 100, 80, 60, 40, 20

36, 37, 39, 40, 42, 43

6. 1, 3, 9, 27, 81

14, 14, 13, 11, 8, 4

7. 20, 23, 27, 30, 34

1,024, 256, 64, 16, 4

8. 48, 24, 12, 6, 3

0, 100, 200, 300, 400

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 108

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Complete Patterns You can figure out the rule for a pattern, then complete it.

, 12, 18,

, 30,

, 42,

Rule: add 6. 6, 12, 18, 24, 30, 36, 42, 48

Directions: Complete the pattern. 1. 10, 2. 0, 3. 4. 64, 5. 30, 29, 6. 1, 4,

, 16, 19, , 14, 21, , 100, 150, , 16, 8,

, 25, 28, , 35,

, 49

, 250, ,

, 350 ,1

, 24,

, 15, 9,

, 16, 25,

, 49,

7. Zarina is doing laps around the track. She runs for 3 laps then walks for 4 laps. Figure out how many laps she did by filling in the pattern below. 3, , , , , , , , , Run Walk Run Walk Run Walk Run Walk Run Walk = Total 8. Classes at Desmond’s school run for 55 minutes with a 5-minute break in between. Write the school schedule for when one class ends and the next begins. 9:30, , , , , , , , , , Begin End Begin End Begin End Begin End Begin End

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 109

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Write Equations Equation is another word for number sentence. Equations have two equal sides. 10 minus a number equals 5: 10 − n = 5 A number divided by 2 equals 4: n ÷ 2 = 4 Directions: Write equations. Use n to stand for the missing number. a

b

1. 3 less than a number is 5:

The sum of 8 and a number is 12:

2. A number times 6 is 36:

24 divided by a number is 3:

3. The product of 4 and a number

The difference between 10 and another

is 28:

number is 5:

4. 3 more than a number is the same as

2 less than twice a number is 8:

2 + 5: 5. 12 plus a number is 15:

10 times a number is 50:

6. 7 subtracted from a number is 7:

A number divided by 7 is 7:

7. A number multiplied by 12 is 60:

The sum if 6 and a number is the same as the product of 5 and 2:

8. 6 less than 11 + 9 is a number:

4 more than a number divided by 2 is 7:

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 110

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Solve Equations To solve an equation, get the missing number alone on one side.

One Step Solve: n + 7 = 10 Subtract 7 from both sides. n + 7 − 7 = 10 − 7 n = 10 − 7 n=3

Two Steps Solve: 8 + n − 5 =14 n + 3 = 14 Subtract 3 from both sides. n + 3 − 3 = 14 − 3 n = 11

Directions: Solve for n. a

b

c

1.

n+4=9

n + 7 = 19

n-6=4

2.

n + 4 = 10

n+7=7

9 + n = 14

3.

n + 7 = 13

20 + n = 12

n + 26 = 30

4.

n - 8 = 10

16 - n = 7

11 + n = 21

5.

25 - n = 20

n-5=4

3-2=n

6.

14 + n = 14

n+3=7+5

n - 12 = 21

7.

n + 8 = 10 + 8

n + 6 - 4 = 14

8-n+5=6

8.

5+n=2+6

n+4=3+3

n + 1 = 10 - 2

9.

11 - n = 7 - 3

n - 6 = 12 + 4

7 + n = 15 - 3

14 + n - 3 = 17

18 - n = 17 - 3

20 - 5 + n = 23

10. Name

Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 111

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Solve Equations To solve equations with multiplication, use division.To solve equations with division, use multiplication. One Step Solve: n ÷ 8 = 6 Multiply both sides by 8. n÷8×8 =6×8 n=6×8 n = 48

Combine Terms Solve: 2n + 3n = 10 5n = 10 Divide both sides by 5. 5n ÷ 5 = 10 ÷ 5 n=2

Directions: Solve for n. a

b

c

1.

3n = 9

5n = 20

n÷5=5

2.

6n = 36

n÷7 =6

3.

7 n = 28

n =2 3 n÷9= 4

4.

n =4 4

8n = 56

n ÷ 3 = 10

5.

5n = 25

4n = 48

6.

2n + 2 = 8

n =3 6 3n +1 = 10

n÷9=7

7.

4n − 8 = 8

5n + 3 = 18

3n + n = 24

8.

n ÷ 7 = 11

2n + 9 = 13

6 + 3n = 27

9.

2n + n = 9

4n − n = 6

n ÷ 3 = 15

4n + 3n = 49

3n +1 = 2n + 6

4n − 4 = 3n + 3

10. Name

Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

2n = 10

Date 112

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Write Equations You can write a number sentence before you solve an equation. Directions: Write a number sentence using n for the missing number. 1. Talia had some crayons, but she used up 7. She has 18 crayons now. How many did she start with?

2. There were 15 birds sitting on a wire. Some more birds arrived and now there are 25. How many more birds arrived?

3. A flower grew 10 centimeters in a week. Now it is 30 centimeters high. How high was it a week ago?

4. Simon checked out many books from the library, but he returned 7. Now he has 13 library books at home. How many did he check out originally?

5. Tracy read 2 times as many pages as Liz did. If Tracy read 12 pages, how many pages did Liz read?

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 113

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Review Equations Here’s a chance to show what you know about patterns and equations.

Directions: Fill in the missing numbers. a

1. 1, 2. 4, 8, 3. 1,

b

,100, , , 5,

, 10,000, 100,000

2,

,

, 20, 24

6, 12, 18, 24,

, 9, 11

9,

,

, 8, 10, 12 , , 36, 45, 54

Directions: Complete the number sentence. a

b

c

4.

16168 =8 2= 2

24246 =6 30 = 30

49 497 =77= 7

5.

56567 =7 8= 8

64648 =8 8= 8

72 728 =89= 9

6.

45459 =9 5= 5

36362 =2 72 = 72

48 483 =345 = 45

Directions: Solve for n. a

b

c

7.

2n − 1 = 7

n+5=5

3n = 36

8.

n =2 2

10n +1 = 11

10n −1 = 9

9.

7 n = 49

16 − n = 12

2n + n = 6

Directions: Write an equation to solve. 10. After 8 fish were moved to another tank, there were 7 left. How many fish were in the tank to start? 11. Jim is one year older than twice Ken’s age. If Jim is 15, how old is Ken? Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 114

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Understand Time It’s time to learn about time.

60 seconds = 1 minute 60 minutes = I hour 24 hours = 1 day 7 days = 1 week

11 12 1 10

2

9

3

8

4 7

5

6

4:10 or 10 minutes after 4

Directions: Fill in the blank. a

b

11 12 1 10

11 12 1

2

9

10

3

8

4 7

6

2

9

3

8

5

4 7

6

5

1. 7:15 means

minutes after

3:45 means

minutes before

2. 9:05 means

minutes after

6:50 means

minutes before

8:17 means

minutes after

3. 10:35 means 4. 48 hours =

minutes before days

180 seconds =

days = 2 weeks

5.

minutes

hours = 3 days

Directions: Use the calendar to answer the questions. NOVEMBER Sun

a

Mon

Tue

Wed

1

2

Thur 3

Fri 4

Sat 5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

6. How many days are there in the month

b

The first Sunday is what date?

of November? 7. What day of the week is the 14th?

How many Thursdays are there in November?

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 115

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Read Time On a clock with hands, the darker lines stand for 5 minutes, and the lighter ones stand for 1 minute. 123 4

11 12 1 10

Digital

56

7

8

2

9

9

Minutes

10

Analog

3

8

4 7

6

Hours

5

Directions: Write in the time shown on the digital clock. a

1.

11 12 1 3 4

8

2.

11 12 1 2

10 9 7 6

7 6

3 4

7 6

5

3 4 7 6

5

11 12 1 2

8

3 4

8

5

10 9

2

10 9

11 12 1 2

8

3 4

8

11 12 1

11 12 1 2

10 9

5

10 9 7 6

c

b

2

10 9

3 4

8

5

7 6

5

Directions: Draw the hands to show the time given on the digital clock. a

c

b

3. 11 12 1

11 12 1 2

10 9

3 4

8 7 6

3 4

8

5

11 12 1 2

10 9 7 6

2

10 9

3 4

8

5

7 6

5

4. 11 12 1

11 12 1 2

10 9

3 4

8 7 6

5

3 4

8 7 6

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

11 12 1 2

10 9 5

2

10 9

3 4

8 7 6

5

Date 116

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Find Time Intervals The clock hands move as time changes. 9:25

25 minutes later, 9:50

11 12 1 2

10 9

3 4

8 7 6

11 12 1 2

10 9

3 4

8 7 6

5

5

Directions: Write the new time. a 11 12 1

1.

11 12 1 2

10 9

3 4

8 7 6

7 6

3 4 7 6

7 6

30 minutes later

5

3 4 7 6

1 hour later

5

10 minutes ago

11 12 1 2

8

3 4

8

5

10 9

2

10 9

11 12 1 2

8

3 4

8

11 12 1 10 9

11 12 1 2

10 9

5

20 minutes later 2.

c

b

2

10 9

3 4

8

5

7 6

6 minutes ago

5

2 hours ago

Directions: Draw the hands to show the new time. a

3.

11 12 1

11 12 1 2

10 9

3 4

8 7 6

7 6

3 4 7 6

7 6

2 minutes after 7:43

5

20 minutes after 2:07

3 4 7 6

5

35 minutes before 11:45

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

5

1 hour before 3:25 11 12 1

2

8

3 4

8

5

10 9

2

10 9

11 12 1 2

8

3 4

8

11 12 1 10 9

11 12 1 2

10 9

5

30 minutes after 9:40 4.

c

b

2

10 9

3 4

8 7 6

5

3 hours after 6:15 Date

117

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Find Time Intervals Fredrick started his homework at 7:30 and finished at 9:15. How long did it take him?

11 12 1

11 12 1 2

10 9

3 4

8 7 6

5

2

10 9

3 4

8 7 6

1 hour and 45 minutes

5

Directions: How long did it take? 1. Kelsey started her bike ride at 3:20 and finished at 4:00. 2. It started to rain at 5:30 and stopped raining at 7:05. 3. The movie began at 6:15 and ended at 8:50. 4. Sabrina started mowing the lawn at 12:20 and finished at 1:05. 5. The plane took off at 10:10 and landed at 11:11. 6. The soccer game began at 2:10 and ended at 4:15. 7. Ashoke got to work at 9:00 and left at 4:00. 8. Briand started the 5K race at 11:02 and finished at 11:23. 9. Kent got to the restaurant at 7:30 and left at 9:08. 10. The play starts at 5:00 and ends at 7:15. 11. Elaine started her homework at 3:10 and finished at 5:00. 12. The sun set at 6:25 and rose at 5:45. Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 118

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Add Intervals of Time When you add time, think 60 minutes = 1 hour.

Sarah spent 45 minutes walking her dog on Monday and 35 minutes walking her dog on Tuesday. How much time did she spend walking her dog over the two days? 45 minutes + 35 minutes = 80 minutes or 1 hour and 20 minutes

Directions: Add the time intervals to solve. 1. Cameron stirred the soup for 15 minutes and his mom stirred it for 25 minutes.Together how long did they stir the soup?

2. Tyler has guitar on Mondays for 50 minutes and piano on Thursdays for 50 minutes. How much time does he spend in lessons each week?

3. Genevieve painted for 2 hours yesterday and for 1 hour and 20 minutes today. How much time did she spend working on her painting?

4. In the morning it takes Gloria 10 minutes to take a shower, 10 minutes to put on her clothes, and 15 minutes to eat breakfast. How long does it take her to get ready for school?

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 119

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Duration Thinking about how long it takes to do something helps you understand time.

Directions: Circle the unit of time that fits best. 1. How long does it take to eat dinner? minutes hours days 2. How long does it take a baby to become an adult? minutes days years 3. How long does it take to count to five? seconds hours days 4. How long does it take to put on your clothes? minutes hours months 5. How long does it take to grow a plant? seconds minutes months 6. How long does it take to get from first grade to college? days months years 7. How long does it take to tell your mom you love her? seconds hours days 8. How long does it take to write a letter? minutes days years 9. How long does it take to peel an orange?? minutes weeks days Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 120

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Find Lengths (Customary) In the U.S. we usually use the Customary System.We measure length using inches, feet, yards, and miles.

Directions: Fill in the blank to describe the length or distance. a

b

1. A book

A football field

2. From the U.S. to France

A car

3. From New York to Chicago

A pizza

4. A ladder

A tennis court

Directions: Circle the number that best estimates the measurement. a

b

5. The height of a dog

The width of a classroom

2 inches 2 feet 20 feet

5 inches 5 feet 5 yards

6. The distance from San Francisco to Los Angeles

The length of a piece of paper 11 inches 11 feet 11 yards

4 yards 4 miles 400 miles 7. The distance Mike threw the football 2 feet 20 yards 2 miles

The length of a paper clip 1 inch 10 inches 1 foot

8. The distance from Miami to Washington, D.C.

The length of a desk 4 inches 4 feet 4 yards

10 inches 10 feet 1,000 miles

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 121

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Find Lengths (Customary) Now let’s get out those rulers.

1

2

3

4

5

Directions: Use a ruler to measure each object in inches. 1.

2.

3. CRAYON

4.

5.

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 122

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Convert Lengths Use division to convert lengths.

12 inches (in) = 1 foot (ft) 3 feet (ft) = 1 yard (yd) 5,280 feet (ft) = 1 mile 50 inches = 4 feet 2 inches Remember: 12 inches = 1 foot, so divide 50 by 12 Directions: Use the information above to convert. a

b

1. 24 in =

ft

2. 30 in =

ft

3. 5,280 ft =

17 ft = 9 ft =

in mile

yd

ft

yd

48 in =

ft

4. 18 ft =

yd

16 in =

ft

in

5. 60 in =

ft

10 ft =

yd

ft

6. 63 in =

ft

15 ft =

yd

7. 36 in =

ft

52 in =

ft

8. 19 ft =

yd

36 in =

yd

27 ft =

yd

20 ft =

yd

9. 10,560 ft = 10. 73 in =

in

ft mi

ft

in

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

in

ft

Date 123

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Add and Convert Lengths After you add lengths, sometimes you have to convert.

The skirt was 1 foot 8 inches long, but Jana added 6 more inches. Now how long is it? 1 foot 8 inches + 6 inches = 1 foot 14 inches = 2 feet 2 inches

Directions: Add the measurements, then convert them. 1. When Francine was 10 she was 4 feet 7 inches tall. Four years later she had grown 8 more inches. How tall was she at 14?

2. Adrian’s garden was 4 yards 2 feet long, and he added another 1 yard 2 feet to it. How many yards and feet long was it then?

3. The barn was 10 feet 4 inches long, but Pete decided to extend it by 2 feet 8 inches. How long was it then?

4. Lyle walked 2,200 feet and Alexa walked 3,080 feet.Together, how far did they walk?

Directions: Add, then convert. a

b

5. 7 ft 3 in + 9 in =

10 in + 11 in =

6. 21 ft 2 in + 10 in =

3 yd 2 ft + 2 ft =

7. 10 ft 3 in + 12 ft 4 in =

6 ft 7 in + 5 ft 9 in =

8. 5 yd 2 ft + 7 yd 1 ft =

21 ft 4 in + 12 ft 10 in =

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 124

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Find Lengths (Metric) The metric system is used all over the world to measure length in centimeters (cm), meters (m), and kilometers (km).

Directions: Fill in the blank with centimeters, meters, or kilometers to describe the length or distance. a

b

1. A marker

From your town to the next

2. The height of a house

The length of your finger

3. From Africa to Asia

The length of a ship

4. The width of a computer screen

The width of your bedroom

Directions: Circle the number that best estimates the measurement. a

b

5. The height of a man

The distance from New York to Boston

2 cm 2 m 2 km

35 cm 35 m 350 km

6. The length of a shoe

The height of an office building

20 cm 20 m 2 km

30 cm 30 m 3 km

7. The distance from St. Louis, MO, to Austin,TX

The width of a table 70 cm 70 m 7 km

1,400 cm 1,400 m 1,400 km

8. The length of a parking lot

The length of a foot race

80 cm 80 m 80 km

10 cm 10 m 10 km

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 125

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Find Lengths (Metric) Time to measure in centimeters.

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

Directions: Use a ruler to measure each object in centimeters. 1. LIP GLOSS

CRAYON

2.

3.

4.

5.

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 126

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Convert Lengths Converting metric lengths is simple.

10 millimeters (mm) = 1 centimeter (cm) 100 centimeters (cm) = 1 meter (m) 1,000 meters (m) = 1 kilometer (km) Directions: Use the information above to convert. a

b

1. 2,000 m =

km

50 mm =

cm

2. 800 cm =

m

34 mm =

cm

3. 720 cm =

m

4. 90 mm =

cm

5.

m = 6 km

6.

mm = 30 cm

7. 290 cm = 8.

4,000 m =

km

200 cm =

m

cm = 9 m

m

5,300 m = cm

m

m

cm = 7 m 20 cm cm

cm = 9 m 3 cm

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

km

mm = 5 cm 3 mm

m = 3 km 400 m

9. 290 cm = 10.

cm

mm

233 cm =

m

5,300 m =

km

cm m

Date 127

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Add and Convert Lengths Now let’s add and convert with metric units.

The scarf Ana was making was 1 m 70 cm long. Then she knitted 60 cm more. How long was it then? 1 m 70 cm + 60 cm = 1 m 130 cm = 2 m 30 cm

Directions: Add the measurements, then convert. 1. The tear in Helen’s sock was just 2 cm 7 mm long, but then it ripped 9 mm more. How long is the tear now?

2. The basketball player was 1 m 60 cm tall in high school, but he grew 50 cm. How tall is he now?

3. The road workers fixed 2 km 500 m of the road last year and 3 km 700 m this year. How much of the road did they fix in all?

4. The new addition will increase the length of the house by 4 m 30 cm. If it was 10 m 80 cm long before, how long is it now?

Directions: Add then, convert. a

b

5. 8 m 50 cm + 70 cm =

20 cm 3 mm + 8 mm =

6. 4 km 300 m + 900 m =

13 m 40 cm + 3 m 60 cm =

7. 7 cm 8 mm + 2 cm 6 mm =

8 km 600 m + 4 km 500 m =

8. 21 m 30 cm + 10 m 80 cm =

32 cm 5 mm + 6 cm 7 mm =

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 128

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Understand Perimeter Perimeter is a measure of the distance around an object. 8 ft 3 ft

3 + 8 + 3 + 8 = 22 ft

3 ft 8 ft

Directions: Find the perimeter. Don’t forget to label your answer. 1.

4m 2m

2m

4+2+4+2

m

=

4m

2. 5 in

5 in

=

3 in

3.

6 ft 6 ft

=

6 ft 6 ft

4.

3 cm

3 cm

3 cm

=

3 cm 3 cm

5.

6 mm

8 mm

=

10 mm

4m

6. 2m

2m

=

4m

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 129

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Find Perimeters Sometimes the sides of an object have equal lengths so, they’re not labeled. 8m

These marks tell you which sides are equal. 6 + 8 + 6 + 8 = 28 m

6m

Directions: Find the perimeter. Use the marks to find the lengths of the unlabeled sides. 4 in

1.

in

4+4+4+4+4 =

2.

6 ft

=

3.

7 cm 3 cm

=

4. 9m

5.

=

4 mm 2 mm

=

7 mm 1 in

6.

6 in

=

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 130

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Understand Area To find the area, multiply the length by the width. 6 cm 3 cm

3 x 6 = 18 square centimeters (sq cm)

Directions: Find the area of the shape. Remember to label your answer in square units. 1.

2.

4m

4x4

8 ft 9 ft

3.

sq m

=

=

7 mm

=

2 mm

4.

3 cm

=

5. 24 in

6.

=

60 in

= 2 yd

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 131

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Find Areas Sometimes you have to convert before you find the area.

2 ft 48 in

48 ÷ 12 = 4 Dimensions: 2 ft x 4 ft Area: 2 x 4 = 8 sq ft

Directions: Convert the dimensions and find the area. 1.

30 mm

=

sq cm

=

sq m

=

sq ft

=

sq cm

=

sq ft

=

sq ft

2. 2m 500 cm

3. 36 in 4 ft

4.

60 mm 9 cm

5.

6.

24 in

60 in

2 yd

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 132

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Solve Word Problems Use what you know about perimeter and area to solve these problems.

Directions: Solve by finding the perimeter or area. Drawing a picture may help. 1. Erika and her dad are going to build a fence around her new garden.The dimensions of the garden are 6 m by 8 m. How much fencing should they buy?

2. Calvin walked all the way around the field. If the field is square, and it’s 35 yards long on one side, how far did he walk?

3. Leahann is going to wallpaper one wall of her room that is 7 feet high by 12 feet wide. How many square feet of wallpaper will she need?

4. Heidi is going to cover the front of her textbook with stickers.The book is 9 inches wide and 11 inches long. How many square inches of stickers will she need?

5. Leo is putting a border around the wooden box that he built.The box is 32 cm long and 20 cm wide. How much material does he need to make the border?

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 133

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Solve Word Problems These word problems are a little more tricky—read carefully.

Directions: Solve. Drawing a picture may be helpful. 1. Grandma is making some new curtains for the front window.The window is 6 feet by 7 feet, and she bought 40 square feet of fabric. Did she buy enough to cover the window?

2. The perimeter of a rectangular building is 150 feet. If one side is 50 feet long, how long is the other side?

3. Evelyn ordered 30 square meters of carpeting to put in the living room. If the room is 6 meters long, how wide must it be if she bought exactly the right amount of carpeting?

4. Desmond wants to make two birthday cards out of the same piece of construction paper. If the paper is 20 cm long by 10 cm wide, can he make two cards that are 10 cm square?

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 134

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Review Measurements Review time has arrived.

Directions: Show the time on the digital or analog clock. a

1.

c

b

11 12 1 2

10 9

3 4

8 7 6

5

11 12 1

11 12 1 2

10 9

3 4

8 7 6

2

10 9

3 4

8

5

7 6

5

2. 11 12 1 3 4

8 7 6

3.

11 12 1 2

10 9

7 6

11 12 1 3 4

8 7 6

7 6

5

50 minutes after 8:30

3 4 7 6

5

11 12 1 2

8

3 4

8

5

10 9

2

10 9

11 12 1 2

10 9

3 4

8

5

11 12 1 2

10 9

5

45 minutes before 7:20

2

10 9

3 4

8 7 6

5

3 hours after 10:55

Directions: Answer the questions. 4. The Keegans got in the car at 7:15 in the morning and arrived at Aunt Jenny’s house at 2:00 in the afternoon. How long did the trip take?

5. Juanita read for 2 hours and 20 minutes and Tina read for 1 hour and 45 minutes. How long did they read altogether? Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 135

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Review Measurements One more look at dimensions.

Directions: Find the dimensions of each shape. 1.

Perimeter

=

ft

Area

=

sq ft

Perimeter

=

m

Area

=

sq m

Perimeter

=

ft

48 in

Area

=

sq ft

50 mm

Perimeter

=

cm

Area

=

sq cm

24 in

2.

700 cm 300 cm

3.

36 in

4.

Directions: Solve. Draw a picture if necessary. 5. The perimeter of a rectangular room is 50 feet. If one side is 11 feet long, how long is the other? 6. Fran bought 90 square meters of patio carpet. If the patio is 12 meters by 8 meters, did she buy enough? 7. Ethan and Marie are going to put in a new carpet on the floor of their bedroom and a new border around the base of the wall. If the room is 10 feet by 9 feet, how much carpeting and how much border material will they need?

Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

Date 136

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Students

Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

num ber sen se add pp. itio 6np 22 p. 2 sub 3 -3 tra 5 ctio np add p. 3 itio 6na 49 nd fra sub ctio tra ns ctio pp. np mu 55 p. 5 ltip -6 0lica 4 54 tio np div isio p. 6 np 5p. 8 79 mu 0ltip 9 2 lica tio na op era nd tio div ns isio wit equ np hd p. 9 atio eci 3ns ma 96 p l p s me . 10 p p. 9 asu 7 7 rem 114 -1 ent 06 pp. 115 -1 36

Scope and Sequence

137

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Answer Key PAGE

1. 2. 3. 4.

PAGE

1. 2. 3. 4. 5. 6.

PAGE

5. 6. 7. 8. 9. 10.

735 399 4,214 5,608 48 941

7. 8. 9. 10. 11. 12.

thousands, tens 0 2 tens 2 hundreds, tens

8

452 7,629 3,003 2,055 4,213 825 641 1,050 2,300 8,520 2,000+400+90+1

PAGE

948 406 880 9,020 125 5,023

7

5 9 1 4 tens ones

PAGE

1. 2. 3. 4. 5. 6.

6

416 166 332 503

7. 8. 9. 10. 11. 12.

900+5 20+6 9,000+200+4 2,000+200+10+2 4,000+1 500+90+9

10

1. 29 is between 20 and 30 and rounds to 30. 2. 45 is between 40 and 50 and rounds to 50. 3. 63 is between 60 and 70 and rounds to 60. 4. 142 is between 140 and 150 and rounds to 140. 5. 756 is between 750 and 760 and rounds to 760. 6. 50 60 100 30 7. 20 20 80 60 8. 70 30 80 90 9. 120 270 390 450 10. 360 520 900 970 PAGE

1. 2. 3. 4. 5. 6. 7. 8. 9. 10.

11

800 100 2,000 300 1,200 4,300 2,000 13,410 700 1,000

1,300 9,300 800 5,600 900 1,000

6,900 600 4,900 800 6,700 300

11. 8,000

500 5,300 800 2,500 3,300 1,900

12

PAGE

seven hundred thirty-two; 700+30+2 905; 900+5 two hundred thirty-nine; 239 2,056; 2,000+50+6 9 8 thousands ones 193; 432; 455 162; 261; 621 905; 1,052; 1,205 432; 433; 623 679; 699; 701 143; 271; 1,003 5,668; 6,212; 7,012 909; 990; 999

PAGE

1/8 1/2

3/8 7/10

< > 1/4><2/4 4. 5/6 5. 3/6 6. 5/9

PAGE

0.5 0.4 0.2 0.1

> < 3/6<6/9

< > 1/2>3/7

0.8 0.2 0.9 0.7

5. 0.6 6. 0.7 7. 0.8

0.3 0.1 1.0

0.23 0.83

0.51 0.4

4.

1. 2. 3. 4. 1. 2. 3. 4. 5.

19

4/10=0.4 75/100=0.75 < <

PAGE

11 10 14 9 11

PAGE

22

0.4 1.0 0.2

20

5/7>4/7 3/8<6/8 3/5>3/6 2/9<3/9 0.4<0.5 0.7>0.1 0.6 6/9 or 2/3

8/10=0.8 2/10=0.2 < >

23 13 12 12 7 11

8 10 6 12 6

12 5 6 12 12

6. 7. 8. 9. 10.

9 4 6 11 8

10 17 18 8 8

7 14 15 16 10

9 15 8 3 16

24

1. 7+3=10 9+2=11 2. 4+8=12 3+6=9 3. 6+(5+2)=6+7=13 9+(7=3)=9+10=19 4. 8+(4+3)=8+7=15 6+(9+1)=6+10=16 5. 5+0=5 0+7=7 10+0=10 PAGE

18

1. 0.35 2. 0.16 3.

PAGE

1. 2. 3. 4. 5.

17

0.3 0.9 0.5 0.4

0.4 8,000+300+50+9 806 0.9 87/100

1/6; 1/4; 1/3 8,999; 9,008; 10,001 3,979; 4,873; 6,214 0.89; 0.9; 0.98 29/100; 0.34; 4/10 6/7; 8/9; 9/10 123; 1,230; 12,230 7/100; 70/100; 77/100 5/8; 5/6; 5/5 0.09; 0.21; 0.4 7.900 2 1/8 8,000 7 0.6 thousands, ones

PAGE

16

1. > 2. > 3. 4/5<7/8 1. 2. 3. 4.

> > 5/8<6/8

15

1. 4/9 2. 1/8 3. 5/7

PAGE

6. 7. 8. 9. 10. 11. 12. 13.

14

1. < 2. < 3. 4/5>2/5

PAGE

21

< < < < > = < < = < > > > < < > = > > < 40+5 53/100 nine-tenths 2/3 481

PAGE

3. 4. 5.

4.

PAGE

1. 2. 3. 4. 5. 6. 7. 8. 9. 10.

1. 68;168; 1,068 2. 0.2; 0.4; 0.9

13

1. 3/4 2. 4/5 3.

PAGE

9

1. > < = > 2. > < < > 3. > > < > 4. < < > < 5. > = < > 6. < < > = Some answers will vary for items 7 - 12. Example answers are listed below. 7. 84 913 12 48 8. 599 16 204 90 9. 30 107 63 56 10. 66 7+7 100 339 11. 13 849 80 16 12. 1,000 16 251 434 PAGE

1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12.

1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12.

12 8 0 9 10 9 15 14 7 6 16 11

PAGE

1. 2. 3. 4. 5.

25 9 11 6 5 17 6 10 11 11 10 14 8

4 7 7 9 9 10 12 14 8 6 7 7

10 12 10 7 5 10 5 12 18 17 4 18

13 2 9 9 11 8 8 15 7 8 8 7

10 13 10 11 12 6 14 10 12 9 12 16

26

17 18 19 28 44 18 59 39 26 25 56 48 19 flowers 39 pieces of fruit

12. 6,460

Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

138

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

PAGE

1. 2. 3. 4. 5. 6. 7.

PAGE

1. 2. 3. 4. 5. 6.

1. 2. 3. 4. 5. 6. 7.

72 107 121 102 121 119

72 62 82 96 55 70 96

35 41 52 34 81 55 84

51 97 98 101 87 94

57 84 97 98 103 110

90 95 90 128 121 99

70 91 108 157 141 103

337 633 505 700 547

729 899 785 502 734

849 940 560 752 806

638 782 971 681 971

30 898 679 904 473 985 812 790 705 952 462 979 1,087 1,202 1,224

839 817 936 1,029 884 1,419 1,050

338 669 970 900 980 658 890 971 831 856 864 1,074 1,522 1,906

31 3,955 4,659 8,772 7,581 5,653 1,374 2,671 1,184 4,900 5,440 6,995 6,810 5,814 8,742

7,630 6,450 2,950 6,381 7,399 3,580

PAGE

6,981 6,075 8,558 9,389 7,074 9,408 8,219 7,807 9,516 8,810 8,070 9,571 7,813 12,201

6,986 3,688

1. 2. 3. 4. 5. 6. 7.

9,991 7,812 9,026 9,841 6,612

11,592

8,505 7,406

8,303 17,103

4,686 8,940 2,917 9,873 4,082 1,601 9,660 9,467 4,622 7,920 4,043 6,042 7,323 10,307

1. 2. 3. 4. 5. 6. 7. 8.

PAGE

7,663 1,617 8,516 2,743 2,841 4,023

95 490 705 203 837 3,980 1,025 7. 3,003 9,700 8. 5,128 5,496 1. 2. 3. 4. 5.

5 10 1 2 4

PAGE

37

7,018 2,490 8,209 9,113

PAGE

5,697 6,993 6,175 4,984 7,012 2,987 5,162 6,282

Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

1. 2. 3. 4. 5.

176 113 110 2,265 715 711

402 85 245 181 1,220 7,818

131 113 140 533 3,801 1,539

110 255 274 468 540 1,720

120 140 140 401 369

1 5 7 1 4 10 1 17 13 11 0 9

2 7 1 7 9

6. 7. 8. 9. 10.

3 14 6 7 5

3 5 3 8 7 9 7 7 11 2 10 10

1 4 9 1 1 0 1 3 4 1 17 2

38

12 12 10 23 31 24 40 31 11 31 52 23 21 geese 30 apples

139

26 78 38 87 29 76 89

5 5 16 2 11

1 7 4 16 6

1 12 4 10 3

1 2 6 2 3 8 7 3 10 16 15 9

5 3 1 8 6 4 2 6 11 6 8 1

18 68 89 29 69 58 26

49 59 63 48 88 29 35

40 3+7=10 or 7+3=10 10-3=7 or 10-7=3

6+9=15 or 9+6=15 15-6=9 or 15-9=6

2. 6+6=12 or 12-6=6 7-3=4 or 7-4=3

3+4=7 or 4+3=7 9-1=8 or 9-8=1

1+8=9 or 8+1=9

3. 5+6=11 or 6+5=11 11-5=6 or 11-6=5

3+10=13 or 10+3=13 13-3=10 or 13-10=3

5+9=14 or 9+5=14 14-5=9 or 14-9=5

4. 2+6=8 or 6+2=8 8-2=6 or 8-6=2

6+13=19 or 13+6=19 19-6=13 or 19-13=6

7+8=15 or 8+7=15 15-7=8 or 15-8=7

5. 11+11=22 or15+16=31 or 7+9=16 or 22-11=11 16+15=31 9+7=16 31-15=16 or 16-7=9 or 31-16=15 16-9=7

1. 2. 3. 4. 5. 6. 1. 2. 3. 4. 5. 6. 7. 1. 2. 3. 4. 5. 6. 7.

38 39 100 9 25 29

58 57 67 36 13 25

47 56 57 11 9 28

36 85 83 22 17 65

21 45 5 15 19 20 30

13 16 17 9 9 3 16

9 22 16 6 19 19 29

18 24 9 34 9 38 26

14 19 27 17 27 19 29

237 868 192 94 616 278 508

667 249 103 337 652 571 830

153 476 338 182 624 872 408

377 196 536 777 234 827 174

226 393 515 747 487 696 777

42

23 3 19 23 55 27 14

PAGE

7+18=25 or 18+7=25 25-7=18 or 25-18=7

41

46 62 66 47 28 31

PAGE

6 2 4 4 0 1 11 1 19 13 8 11

56 27 19 68 72 43 54

1. 4+5=9 or 5+4=9 9-4=5 or 9-5=4

PAGE

2 3 3 2 2

39 15 28 58 49 19 61

6. 10+24=34 or 5+14=19 or 24+10=34 14+5=19 34-10=24 or 19-5=14 or 34-24=10 19-14=5

2,120 9,211 4,751 2,856 10,751 7,007 5,070 12,731

36

4 5 6 1 7

1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12.

2,357 5,759

35

1. 2. 3. 4. 5. 6.

PAGE

83 313 658 335 113 7,667

39

15 38 47 28 37 58 89

PAGE

8,840 7,412

34 58 187 92 96 395 465 82 145 192 100 93 760 286 124 586 820 1,548 739 624 6,600 4,987 133 311 500 1,395 7,370 975 546 8,870 733 3,641 6,092 4,991 6,513 2,302 4,631 7,390 13,500 2,245 8,810 13,713 10,503

4,950 3,750

32

1. 6,467 7,652 2. 7,840 4,560 3. 1,835 8,518 4. 3,727 4,714 5. 8,516 10,170 6. 6,301 7,815 7. 5,322 3,231

33

1. 8,087 8,991 2. 7,010 7,105 3. 6,188 7,661 4. 11,598 8,070 5. 6,681 11,107 6. 9,824 9,479 7. 5,504 7,565 PAGE

625 444 988 777 484

1. 1,359 3,303 2. 2,792 4,666 3. 9,453 4,962 4. 8,703 2,962 5. 3,885 9,905 6. 4,423 3,490 7. 7,373 9,472 PAGE

58 92 51 70 91 31 80

29

577 756 483 920 1,241 911 1,252

PAGE

60 83 34 38 84 56 90

28

539 776 855 345 910

PAGE

PAGE

31 51 76 90 42 81 61

78 81 134 119 132 144

PAGE

1. 2. 3. 4. 5.

27

26 42 22 40 33 60 70

43

459 331 832 629 862 381 231

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Answer Key PAGE

1. 2. 3. 4. 5. 6. 7.

44

221 291 108 291 176 219 476

PAGE

35 293 143 145 757 167 288

142 220 213 219 405 87 597

8,412 2,113 1,213 8,061 6,277 8,908 2,534 3,229 6,005 2,574 2,792 1,669 1,749 3,279

2,428 8,149 6,069 5,365 4,180 8,575 5,305 6,079 2,645 7,888 8,577 5,369

5,522 6,101

PAGE

1. 2. 3. 4. 5.

5,802 5,002 7,221 1,019 4,019 4,313

PAGE

6,745 8,879

5,243 3,959

5,066 5,922

7,155 6,185

8,814 3,563

2,276 3,343

35

414

8

219

193

553

759

425

464

78

18

9,374 183

1,272

844

326

154

4,792

1,389

2,744

1,907

6,448

1,049

3,188 1,928

22

43

47

12

229

474

15

10

429

165

406

618

708

289

247

187

Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

PAGE

1. 2. 3. 4. 5. 6. 7.

47

1. 2. 3. 4. 5. 6. 1. 2. 3. 4.

2,449

67 80 887 708 693

88 499 151 749 979

4,137 2,716

202 328 559 643 816

263 122 974 657 814

417 378 573 970 908

51

4/6=2/3 7/7=1 8/12=2/3 8/10=4/5

4/10=2/5 4/8=1/2 3/9=1/3 5/5=1

5/8 4/9 7/10 5/8

7/12 1/7 1/8 2/11

2/4=1/2 4/8=1/2 3/12=1/4 6/8=3/4

2/8=1/4 8/10=4/5 5/10=1/2 3/6=1/2

60

10/12=5/6 2/6=1/3 6/9=2/3 4/12=1/3

PAGE

7/9 5/8 6/7 7/10

59

1/6 1/4 1/3 5/9

61

1. 3/4 of a can 3. 5/7 of the blocks 2. 5/9 of the book 4. 7/12 of the pizza

PAGE

53 86 202 204 996 522

22 132 178 742 442

155 55 23 390 9,412

59 370 275 154 935

287 69 694 1,689 646

15 5,612 902 246 1,918

222 75 5,083 1,252 166

122 390 479 649 7,399

54

55

140

1. 2. 3. 4.

5/7 11/12 5/9 7/8

58

6/8=3/4 9/12=3/4 2/6=1/3 4/12=1/3

PAGE

2/4=1/2 8/12=2/3 4/10=2/5 3/12=1/4

62

1. 1/3 of a jar 4. 2/3 of a pack 2. 2/3 full 5. 4/11 of his money 3. 1/2 of a pizza

3. 45 miles 4. 135 cm

3/4=6/8 1/2=3/6 2/4=4/8 2/3=8/12

1. 2. 3. 4.

2/8=1/4 2/10=1/5 6/9=2/3 8/10=4/5

57

3/4 5/6 9/11 2/3

PAGE

3. 70 apples 4. 101 pages

52

1/3=3/9 1/4=2/8 3/4=9/12 1/2=5/10

PAGE

1. 2. 3. 4.

56

4/6=2/3 3/9=1/3 4/12=1/3 6/12=1/2

PAGE

50

127 69 1,426 528 117 104 1,580 679 3,880 3,306 42 blocks

PAGE

495

4,076 6,773 8,487

1,264 608

1. 2. 3. 4.

PAGE

6,196 1,777 7,628 2,881

12 39 278 81 304 351 69 221 4,597 684 40 birds 35 cards

PAGE

235

PAGE

1. 2. 3. 4.

4,559 8,303 3,318 370

1. 36 feet 2. 40 feet

1,318

8,449 2,128

5,871 8,973

1. 8 people 2. 19 cm

7,886 5,819

547

7,071

49

78 95 127 895 639

PAGE

2,664 1,809

3,202 2,205 182 4,107 1,309 1,819 5,428 1,853 979 2,547 776 1,289 4,769 3,796

79

1. 9 18 2. 366 874 3. 629 274 4. 698 7,278 5. 1,138 297 6. 9,266 5,049 7. 868 8,088 8. 3,928 2,881

4,611 8,620

48

1. 21 19 2. 8 27 3. 93 779 4. 178 124

5. 6,339 6,579 6. 4,554 7,171 7. 4,586 9,049 8. 511 3,516 PAGE

2,475 3,112 3,661 1,458 9,313 7,726 6,368 5,039 3,062 2,659 4,074 5,569 2,089 9,268

47

1. 5,113 1,231 2. 4,103 2,724 3. 2,376 909 4. 583 5,914 5. 4,353 2,788 6. 699 4,365 7. 3,868 2,777 PAGE

226 319 92 395 304 79 388

46

1. 3,521 8,117 2. 7,337 2,134 3. 4,911 1,311 4. 8,525 5,909 5. 6,908 7,877 6. 5,083 1,179 7. 5,785 4,868 PAGE

133 112 138 79 109 187 289

45

1. 1,432 7,332 2. 4,202 5,291 3. 1,665 2,606 4. 7,192 3,204 5. 9,506 1,496 6. 6,451 8,312 7. 4,646 7,577 PAGE

222 211 154 323 672 676 77

5/6=10/12 2/6=3/9 2/5=4/10 1/2=2/4

1. 2. 3. 4. 5.

PAGE

1. 2. 3. 4.

1/6 4/9 2/4=1/2 10/12=5/6 4/8=1/2

3/5>3/9 6/8>8/12 10/12=5/6 2/10 or 0.2

7/8<11/12 2/3=6/9 3/7>3/8 9/10 or 0.9

65

14 24 6. 27 8 7. 10 28 8. 0 18 9. 7x3=21 1x5=5 10.

PAGE

1. 2. 3. 4.

3/10 8/12=2/3 2/8=1/4 3/10 5/6

64

6/10>3/6 1/6<1/4 8/10>8/11 6/10 or 0.6

PAGE

1. 2. 3. 4. 5.

63

4/7 3/5 6/11 2/3 6/9=2/3

8 0 3 0

4x5=20 9x2=18 8x3=24 3x6=18 6x3=18

5x3=15 6x6=36 2x3=6 7x2=14 9x4=36

66 0 2 7 5

0 0 8 4

4 9 0 0

0 0 5 0

5. 0 6 2 0 0 6. 1 0 7 0 0 7. 9 0 0 6 0

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

PAGE

1. 2. 3. 4. 5. 6. 7. 8.

PAGE

1. 2. 3. 4. 5. 6. 7. 8.

1. 2. 3. 4. 5. 6. 7. 8. 1. 2. 3. 4. 5. 6.

12 42 14 49 16 56 18 63

18 48 21 56 24 64 27 72

24 54 28 63 32 72 36 81

30 60 35 70 40 80 45 90

PAGE

PAGE

0 15 25 0 5 20 0

40 20 2 35 90 45 35

70 40 12 18 0 14 10

20 10 100 15 30 4 20

30 30 10 16 40 5 50

45 21 60 36 35 63 0 30

6 48 9 0 81 30 64 100

42 0 0 90 14 27 15 7

50 18 28 56 20 49 12 4

36 12 54 6 40 3 16 72

2x9=18 4x6=24 9x(2x4) (5x7)x4 8x5+8x9 7x9+3x9 68 69 546 186 108

159 128 106 146 184

305 459 305 168 648

48 146 188 88 148

73 140 581 468 235 472

252 136 238 672 372

130 135 112 87 138

424 644 315 375 392

432 198 492 282 711

74

1. 1,448 1,466 2. 1,569 488 3. 1,839 2,766

1,248 1,896 1,263 3,288 6,399 628 1,682 1,893 284 1,536 1,468 1,684

Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

2,577 2,512 4,752 1,865 3,766 7,461

6,339 32,928

42,876 20,160 12,825 31,350 51,804 68,868 54,423 22,218 21,552 19,824

24,878 35,696

63,099 10,486 18,826 24,084 21,939 36,484 16,884 72,888

22,036

43,045

8,700

20,315

9,558

8,238

89,280

11,711

66

112

1,035 496

105

210

528

258

1,466

588

3,055 1,440 5,775

1,299

2,590 862

3,519

3,292

79

1. 595 222 232 730 648 912 2. 2,408 3,215 228 3,185 747 3,150 3. 1,924 10,927 2,076 12,045 6,032 1,884 4. 24,948 1,197 3,941 9,940 35,180 11,263 5. 44,205 10,460 55,244 32,445 33,304 39,912 PAGE

80

1. 7 4 5 9 2. 7 6 6 5 3. 8 9 6 8

141

4. 4 7 9 3 5. 5 8 9 4

1 6 1 6 1 6 1 6

PAGE

3,348 5,928

328

1. 2. 3. 4. 1. 2. 3. 4.

21,966 48,888 18,996 16,882 16,486 6,488 35,707 16,288 12,884 15,996

189

PAGE

PAGE

78

1. 108 86 2. 568 164 3. 1,269 4,866 4. 693 2,036 5. 12,366 38,700 PAGE

2,268 1,827

77

1. 15,741 23,180 2. 61,064 37,664 3. 19,614 31,608 4. 21,872 54,720 5. 35,852 24,336 PAGE

2,540 4,165 2,338 4,416 1,449 3,412 2,385 2,296 4,825 2,264

76

1. 10,828 10,864 2. 16,884 21,693 3. 15,339 12,996 4. 8,844 12,868 5. 18,699 16,840 PAGE

46 96 88 217 189

75

1. 2,185 2,108 2. 1,650 4,095 3. 4,734 6,608 4. 2,912 1,892 5. 3,129 4,370

72

434 144 584 252 430

PAGE

4. 886 4,866 2,199 1,048 1,288 693 5. 1,426 1,569 486 628 3,055 2,463

71

48 567 104 249 216

PAGE

1. 2. 3. 4. 5.

10 20 15 30 20 40 25 50

7x4=28 5x3=15 3x(7x2) (2x6)x9 6x3+6x2 2x6+5x6

PAGE

1. 2. 3. 4. 5.

8 18 12 27 16 36 20 45

70

16 8 40 25 80 0 0 24

PAGE

6 16 9 24 12 32 15 40

69

8 2 20 10 30 12 40

PAGE

4 14 6 21 8 28 10 35

68

6 36 7 42 8 48 9 54

PAGE

1. 2. 3. 4. 5. 6. 7.

67

2 12 3 18 4 24 5 30

1. 2. 3. 4. 5.

9 8 9 7

PAGE

1. 2. 3. 4. 5.

5. 6. 7. 8.

1 6 1 6

2 7 2 7

3 8 3 8

4 9 4 9

5 10 5 10

3 8 3 8

4 9 4 9

5 10 5 10

5. 6. 7. 8.

1 6 1 6

2 7 2 7

3 8 3 8

4 9 4 9

5 10 5 10

6. 7. 8. 9. 10.

10 5 10 10 2

2 5 5 2 5

2,5,10 2 2,5,10 5 2

2 10 2 5 5

10 2 5 3 10

84 6,7x6=42 4,8x4=32 9,9x9=81 9,7x9=63 8,4x8=32 9,5x9=45 6,9x6=54 8,8x8=64

4,4x4=16 9,2x9=18 7,5x7=35 6,6x6=36 8,10x8=80 7,4x7=28 9,3x9=27 8,9x8=72

85 5 5 4 4

2 8 7 2

4 8 6 5

8 8 6 4

5. 6. 7. 8.

7 8 9 6

10 2 5 8

12 19 14 18 11

29 13 21 16 14

16 42 11 19 46

12 13 24 19 11

31 31 59 82 87

83 69 85 82 92

50 86 59 96 96

63 49 83 73 28

109 107 114 214

368 135 294 109

284 144 166 189

154 215 146 463

869 885 959 637

863 145 385 927

539 781 678 842

863 938 667 895

7 3 3 8

9 3 7 7

6 5 9 6

86

87

88

89

246 804 634 883

PAGE

1. 2. 3. 4.

5 10 5 10

83

158 137 127 139

PAGE

1. 2. 3. 4.

2 7 2 7

21 81 71 56 94

PAGE

1. 2. 3. 4.

4 9 4 9

82

18 31 14 12 13

PAGE

1. 2. 3. 4. 5.

3 8 3 8

6,3x6=18 8,6x8=48 5,10x5=50 5,3x5=15 8,2x8=16 9,8x9=72 7,7x7=49 5,6x5=30

PAGE

1. 2. 3. 4.

2 7 2 7

5 2 2,5,10 2 2,5,10

PAGE

1. 2. 3. 4. 5. 6. 7. 8.

81

90

1,429 1,421 4,579 1,487

2,871 1,224 2,516 1,065

1,804 1,258 1,242 3,828

2,846 1,007 1,186 1,749

1,363 1,549 1,526 3,187

3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com

Answer Key PAGE

1. 2. 3. 4. 5. 6.

PAGE

1. 2. 3. 4. 5. 6.

1. 2. 3. 4.

17 12 150 749 142 268

24 123 72 115 1,370 1,193

14 123 466 187 234 2,346

16 33 74 679 827 788

PAGE

PAGE

1. 2. 3. 4.

1. 2. 3. 4. 5. 6. 7. 8.

$4.25 $15.85 $24.90 $21.25

1. 2. 3. 4. 5. 6. 7. 8.

$3.90 $9.36 $0.39 $0.11

102

1. $20.70 $18.92 $47.25 $16.83 $7.92 2. $38.15 $41.92 $75.96 $10.68 $35.28 3. $32.86 $150.64 $52.20 $181.05 $194.80 4. $0.62 $1.69 $2.28 $1.76 $1.87 5. $0.74 $0.38 $0.72 $1.51 $1.47 6. $8.52 $5.78 $13.57 $5.38 $1.66

48 39 21 208 22 16,428

6 128 12 25 1,086 29

7 9 17 1,899 1,408 2,496

438 87 1,185 2,352 85 35,170

376 990 97 1,706 22,096 175

26 1,377 32 18,102 2,718 2,467

90 9 1,266 23 37 451

96 8 218 1,535 74 1,190 17,124

97 $0.15 $0.16 $0.10 $0.30 $0.45 $0.46 $0.25 $0.56 $0.75 $0.85 $0.95

$0.50 $0.75 $1.00 $1.10 $1.16 $1.17

98

$7.25 $4.21 $30.30 $15.08 $26.02 $41.50 1 $5 bill, 3 $1 bills, 1 quarter, 1 dime, 1 nickel, and 3 pennies; 1 $20 bill, 4 $1 bills, 1 quarter, and 1 nickle

Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

1. 2. 3. 4.

PAGE

1. 2. 3. 4.

5. 6. 7. 8.

$12.74 $3.40 $5.50 $24.25

105 $11.32 $10.22 $0.66 $19.40 $0.85 $9.73

$24.08 $20.51 $4.62 $19.36 $33.53 $12.20

$15.59 $2.86 $48.56 $1.24 $17.74 $18.83

$1.58 $1.93 $15.63 $66.01 $22.94 $1.94 $2.87 $27.78 $20.91 $15.43 $175.21$18.59

$12.04 $1.16 $0.14 $1.89 $6.35 $24.03

$42.25 $11.21 $0.82 $20.17 $23.16 $7.63

$1.64 $10.27 $0.08 $53.37 $68.70 $18.03

3 5 8 12 3 60

106

107 2 22 7 7 16 9

12 8 8 1 7 5

142

7. 8. 9. 10. 11. 12.

49 8 x ÷ x x

9 12 + -

4 40 ÷ + x

1. 2. 3. 4. 5.

8+n=12 24÷n=3 10-n=5 2xn-2=8 10xn=50 n÷7=7 6+n=5x2 (n+4)÷2=7

111 n=12 n=0 n=8 n=9 n=9

n=10 6. n=5 7. n=4 8. n=10 9. n=1 10.

n=0 n=5 n=3 n=7 n=6

n=9 n=33 n=12 n=7 n=2 n=7 n=22 n=5 n=4 n=8

n=25 6. n=42 7. n=5 8. n=30 9. n=12 10.

n=3 n=3 n=4 n=3 n=77n=2 n=3 n=2 n=7 n=5

112

n=3 n=6 n=4 n=16 n=5

PAGE

1. 2. 3. 4. 5.

110

n=5 n=6 n=6 n=18 n=5

PAGE

$0.92 $18.92 $3.92 $3.92 $11.83 $22.05

PAGE

1. 2. 3. 4. 5. 6.

104

$8.85 $16.88 $31.20 $12.71 $1.94 $1.84

PAGE

1. 2. 3. 4. 5. 6.

PAGE

1. 2. 3. 4. 5.

109

n-3=5 nx6=36 4xn=28 3+n=2+5 12+n=15 n-7=7 nx12=60 11+9-6=n

5. $11.54

$6.25 $57.00 $1.04 $5.47

PAGE

1. 2. 3. 4. 5. 6.

103

$2.15 $8.58 $8.30 $59.00

subtract 6 add 10 divide by 3 multiply by 4 add 1, add 2 subtract 0, 1, 2, 3, 4 divide by 4 add 100

10, 13, 16, 19, 22, 25, 28, 31 0, 7, 14, 21, 28, 35, 42, 49 50, 100, 150, 200, 250, 300, 350 64, 32, 16, 8, 4, 2, 1 30, 29, 27, 24, 20, 15, 9, 2 1, 4, 9, 16, 25, 36, 49, 64 3, 7, 10, 14, 17, 21, 24, 28, 31, 35 9:30, 10:25, 10:30, 11:25, 11:30, 12:25, 12:30, 1:25, 1:30, 2:25, 2:30, 3:25

PAGE

1. 2. 3. 4. 5. 6. 7. 8.

108

add 3 subtract 5 multiply by 2 add 0, 1, 2, 3, 4 subtract 20 multiply by 3 add 3, add 4 divide by 2

PAGE

101

$0.88 $8.88 $0.26 $0.37

PAGE

$0.10 $0.25 $0.35 $0.55 $0.50

PAGE

$14.00 $28.00 $15.50 $1.50

100

$26.25 $26.85 $7.80 $16.95

PAGE

95

1. $0.05 $0.20 2. $0.25 $0.50 3. $0.25 $1.05 4. $0.25 $1.15

1. 2. 3. 4.

99

$21.00 $23.50 $20.00 $22.50

PAGE

94

13 4,417 1,536 84 1,854 572

PAGE

1. 2. 3. 4.

6 7 13 13 84 862

93

63 35 205 42 367 2,709

PAGE

1. 2. 3. 4. 5. 6.

12 5 52 6 75 119

14 books 1,070 tickets 288 crayons 87 miles 39 pages

PAGE

1. 2. 3. 4. 5. 6.

3 3 6 44 471 359

84 dandelions 8 marbles 77 hours 93 miles 8 bags

PAGE

1. 2. 3. 4. 5.

PAGE

2 9 21 84 145 157

92

28 94 148 174 473 3,808

PAGE

1. 2. 3. 4. 5.

91

3 9 8 13 54 103

n=4 n=6 n=36 n=7 n=18

n=63 n=6 n=7 n=45 n=7

113

n-7=18 15+n=25 n+10=30 n-7=13 2n=12

PAGE

114

1. 1, 10, 100, 1,000, 10,000, 100,000 2, 4, 6, 8, 10, 12 2. 4, 8, 12, 16, 20, 24 6, 12, 18, 24, 30, 36 3. 1, 3, 5, 7, 9, 11 9, 18, 27, 38, 45, 54 4. ÷ + ÷ 5. ÷ ÷ ÷ 6. ÷ x 7. n=4 n=0 n=12 8. n=4 n=1 n=1 9. n=7 n=4 n=2 10. n-8=7, n=15 11. 2n+1=15, n=7

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PAGE

115

PAGE

1. 15 minutes after 7 15 minutes before 4 2. 5 minutes after 9 10 minutes before 7 3. 25 minutes before 11 17 minutes after 8 4. 2 days 3 minutes 5. 14 days 72 hours 6. 30 Nov. 6 7. Monday PAGE

116

1. 7:21 2. 10:32

5:40 8:51

11 12 1

3.

3 4

8 7 6

4.

11 12 1 2

10 9

7 6

3 4 7 6

PAGE

7 6

6:20 5:30

7 6

3 4

5

7 6

5

3 4 7 6

5

5

2

10 9

3 4

8 7 6

5

118

119

40 minutes 1 hour and 40 minutes 3 hours and 20 minutes 35 minutes

PAGE

PAGE

6. 7. 8. 9.

years seconds minutes minutes

5. 6. 7. 8.

2 ft 5 yd 400 miles 11 in 20 yd 1 in 1,000 miles 4 ft

121

in yd miles ft miles in ft yd

1. 2. 3. 4. 5.

2 2 1 6 5

PAGE

1. 2. 3. 4.

PAGE

1. 2. 3. 4.

PAGE

yd 2 ft 6. in 3 yd 7. 4 ft 8. ft 4 in 9. yd 1 ft 10.

ft 3 in ft 4 ft yd 1 ft miles ft 1 in

5 4 1 9 6

yd in yd yd yd 2 ft

124 5. 6. 7. 8.

8 ft 22 ft 22 ft 13 yd

1 ft 9 in 4 yd 1 ft 7 in 12 ft 4 in 34 ft 2 in

125

cm m km cm

PAGE

5 3 6 2 6

km cm m m

5. 6. 7. 8.

126

2m 20 cm 1,400 km 80 m

350 km 30 m 70 cm 10 km

1. 2. 3. 4. 5. 6. 7. 8. 9. 10.

PAGE

1. 2. 3. 4. 1. 2. 3. 4.

PAGE

1. 2. 3. 4. 5. 6. 7. 8. 1. 2. 3. 4. 5. 6.

Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006

5. 104 cm

134

No 25 ft 5m Yes

PAGE

135 11 12 1

7 6 11 12 1 3 4

8 7 6

5 cm 3 cm 4 mm 20 cm 4 km 2m 900 cm 5 km 300 m 90 cm 53 mm 720 cm 90 cm 2 m 33 cm 5 km 300 m

21 17 13 39

cm m km cm

1 mm 100 m 2 mm

3.

5

3 4

8 7 6

5

7 6

3 4 7 6

5

5

11 12 1 2

8

3 4

8

5

10 9

2

10 9

11 12 1 2

5

11 12 1 3 4

7 6

11 12 1 10 9

7 6

2

8

3 4

8

5

10 9

2

10 9

11 12 1 2

10 9

6 mm 10 cm 200 m 10 cm 20 cm 200 m 4 mm 10 cm

3 4

8

2.

11 12 1 2

10 9

2

10 9

3 4

8 7 6

5

4. 6 hours and 45 minutes 5. 4 hours and 5 minutes PAGE

136

1. Perimeter 2+2+2+2=8 ft Area 2x2=4 sq ft 2. Perimeter 7+3+7+3=20 m Area 7x3=21 sq m 3. Perimeter 3+4+3+4=14 ft Area 3x4=12 sq ft 4. Perimeter 5+5+5+5=20 cm Area 5x5=25 sq cm 5. 14 ft 6. No 7. 90 sq ft of carpeting and 38 ft of border material

129

4+2+4+2=12 m 5+3+5=13 in 6+6+6+6=24 ft 3+3+3+3+3=15 cm 6+8+10=24 mm 1+5+1+5=12 yd

PAGE

1. 2. 3. 4. 5. 6.

133

4. 6 cm 5. 16 cm

128

3 cm 2m 6 km 15 m 9m 5 km 10 cm 32 m

4. 6x9=54 sq cm 5. 2x2=4 sq ft 6. 5x6=30 sq ft

28 m 140 yd 84 sq ft 99 sq in

PAGE

127

2 km 8m 7m 9 cm 6,000 m 300 mm 2m 3,400 m 2m 903 cm

132

1. 3x3=9 sq cm 2. 2x5=10 sq m 3. 4x3=12 sq ft

1. 6:15

1. 4 cm 2. 12 cm 3. 2 cm PAGE

131

1. 4x4=16 sq m 4. 3x3=9 sq cm 2. 8x9=72 sq ft 5. 5x7=35 sq yd 3. 7x2=14 sq mm 6. 10x1=10 sq in

123 ft 5 ft 6 mile yd 1 ft 3

5 ft 3 in 6 yd 1 ft 13 ft 1 mile

PAGE

120

minutes years seconds minutes months

PAGE

4. 6 in 5. 1 in

11 12 1 2

8

3 4

8

11 12 1 10 9

2

10 9

40 minutes 1 hour and 35 minutes 2 hours and 35 minutes 45 minutes 1 hour and 1 minute 2 hours and 5 minutes 7 hours 21 minutes 1 hour and 38 minutes 2 hours and 15 minutes 1 hour and 50 minutes 11 hours and 20 minutes

PAGE

1. 2. 3. 4.

3 4

8

5

2

7 6

1. 2. 3. 4. 5.

5

11 12 1 2

10 9

11 12 1 10 9 8

1. 2. 3. 4.

7 6

11 12 1 3 4

8

1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12.

3 4

8

5

4:35 12:00 2

10 9

PAGE

2

10 9

117 11 12 1

4.

5

PAGE

11 12 1 3 4

7 6

1. 8:40 2. 12:45 3.

7 6

2

8

5

3 4

8

5

10 9

2

10 9

11 12 1 2

8

3 4

8

11 12 1

11 12 1 2

10 9

5

10 9

11:05 6:17

122

1. 2 in 2. 5 in 3. 3 in

130

4+4+4+4+4=20 in 6+6+6+6=24 ft 7+3+7+3=20 cm 9+9+9=27 m answer to come 1+6+1+6=14 in

143

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Saddleback Math Covers

10/22/06

6:24 PM

Page 1

MATH COMPUTATION SKILLS & STRATEGIES Every book in the Math Computation Skills and Strategies series contains over 100 reproducible pages.These highinterest activities combine computation practice with strategy instruction. Featuring a Scope and Sequence chart, the books allow educators to supplement their math lessons with the extra math practice all students need. In addition, periodic reviews allow for reinforcement and assessment of skills.

H I G H - I N T E R E S T M AT H C O M P U TAT I O N S K I L L S & S T R AT E G I E S

HIGH-INTEREST

• LEVEL 3

The books are grade specific, but they were created with students of all ages in mind. Each book features ready-to-use pages with instructional tips at the beginning of each lesson. Math Computation Skills and Strategies reproducible books are the perfect choice for educators.

HIGH-INTEREST

MATH COMPUTATION SKILLS & STRATEGIES Operations Fractions and Decimals Whole Numbers Perimeter and Area Regrouping

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S A D D L E B A C K E D U C AT I O N A L P U B L I S H I N G

Saddleback E-Book

Solving Word Problems Money Measurement

LEVEL

3

100 plus+ REPRODUCIBLE ACTIVITIES

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