Decimals & Percents Practice Puzzles

48
NEW YORK TORONTO LONDON AUCKLAND SYDNEY MEXICO CITY NEW DELHI HONG KONG BUENOS AIRES 40 Reproducible Solve-the-Riddle Activity Pages That Help All Kids Master Decimals and Percents by Bob Hugel Decimals & Percents Practice Puzzles © Bob Hugel, Scholastic Teaching Resources

description

Math

Transcript of Decimals & Percents Practice Puzzles

Page 1: Decimals & Percents Practice Puzzles

NEW YORK • TORONTO • LONDON • AUCKLAND • SYDNEYMEXICO CITY • NEW DELHI • HONG KONG • BUENOS AIRES

4400 RReepprroodduucciibbllee SSoollvvee--tthhee--RRiiddddllee AAccttiivviittyy PPaaggeess TThhaatt HHeellpp AAllll KKiiddss MMaasstteerr DDeecciimmaallss aanndd PPeerrcceennttss

by Bob Hugel

Decimals & Percents Practice Puzzles © Bob Hugel, Scholastic Teaching Resources

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Dedication

To Mike and Debbie, a great brother-and-sister team

Scholastic Inc. grants teachers permission to photocopy the activity sheets from this book for classroom use. No other part of this publication may be reproduced in whole or in part, or stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without written permission of the publisher. For information regarding permission, write to

Scholastic Inc., 557 Broadway, New York, NY 10012.

Cover design by Maria LiljaCover illustration by Kelly KennedyInterior design by Holly Grundon

Interior illustrations by Kelly Kennedy

ISBN 0-439-71857-0Copyright © 2005 by Bob Hugel

All rights reserved.Printed in the U.S.A.

1 2 3 4 5 6 7 8 9 10 40 12 11 10 09 08 07 06 05

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Introduction . . . . . . . . . . . . . . . . . . . 4

Riddle 1 . . . . . . . . . . . . . . . . . . . . . 5Building Vocabulary

Riddle 2 . . . . . . . . . . . . . . . . . . . . . 6Rounding Decimals to the Nearest Whole Number

Riddle 3 . . . . . . . . . . . . . . . . . . . . . 7Rounding Decimals to the Nearest 10th Place

Riddle 4 . . . . . . . . . . . . . . . . . . . . . 8Rounding Decimals to the Nearest 100th Place

Riddle 5 . . . . . . . . . . . . . . . . . . . . . 9Comparing Decimals

Riddle 6 . . . . . . . . . . . . . . . . . . . . . 10Converting Fractions to Decimals

Riddle 7 . . . . . . . . . . . . . . . . . . . . . 11Converting Fractions to Decimals

Riddle 8 . . . . . . . . . . . . . . . . . . . . . 12Converting Decimals to Fractions

Riddle 9 . . . . . . . . . . . . . . . . . . . . . 13Converting Mixed Numbers to Decimals

Riddle 10 . . . . . . . . . . . . . . . . . . . . 14Converting Mixed Numbers to Decimals

Riddle 11 . . . . . . . . . . . . . . . . . . . . 15Comparing Decimals and Fractions

Riddle 12 . . . . . . . . . . . . . . . . . . . . 16Adding Decimals in Expanded Form

Riddle 13 . . . . . . . . . . . . . . . . . . . . 17Adding Decimals and Whole Numbers

Riddle 14 . . . . . . . . . . . . . . . . . . . . 18Adding Decimals in the 10th Place

Riddle 15 . . . . . . . . . . . . . . . . . . . . 19Adding Decimals in the 100th and 1,000th Place

Riddle 16 . . . . . . . . . . . . . . . . . . . . 20Adding Decimals in Different Places

Riddle 17 . . . . . . . . . . . . . . . . . . . . 21Estimating Sums

Riddle 18 . . . . . . . . . . . . . . . . . . . . 22Subtracting Decimals in the 10th Place

Riddle 19 . . . . . . . . . . . . . . . . . . . . 23Subtracting Whole Numbers From Decimals

Riddle 20 . . . . . . . . . . . . . . . . . . . . 24Subtracting Decimals From Whole Numbers

Riddle 21 . . . . . . . . . . . . . . . . . . . . 25Subtracting Decimals in the 100th and 1,000th Place

Riddle 22 . . . . . . . . . . . . . . . . . . . . 26Subtracting Decimals in Different Places

Riddle 23 . . . . . . . . . . . . . . . . . . . . 27Multiplying Decimals and Whole Numbers

Riddle 24 . . . . . . . . . . . . . . . . . . . . 28Multiplying Decimals and Whole Numbers

Riddle 25 . . . . . . . . . . . . . . . . . . . . 29Multiplying Decimals by Decimals

Riddle 26 . . . . . . . . . . . . . . . . . . . . 30Multiplying Decimals in Different Places

Riddle 27 . . . . . . . . . . . . . . . . . . . . 31Dividing Whole Numbers by Decimals

Riddle 28 . . . . . . . . . . . . . . . . . . . . 32Dividing Decimals by Decimals

Riddle 29 . . . . . . . . . . . . . . . . . . . . 33Dividing Decimals in Different Places

Riddle 30 . . . . . . . . . . . . . . . . . . . . 34Converting Decimals to Percents

Riddle 31 . . . . . . . . . . . . . . . . . . . . 35Converting Percents to Decimals

Riddle 32 . . . . . . . . . . . . . . . . . . . . 36Converting Fractions, Decimals, and Percents

Riddle 33 . . . . . . . . . . . . . . . . . . . . 37Comparing Decimals and Percents

Riddle 34 . . . . . . . . . . . . . . . . . . . . 38Comparing Percents and Fractions

Riddle 35 . . . . . . . . . . . . . . . . . . . . 39Visualizing Percents

Riddle 36 . . . . . . . . . . . . . . . . . . . . 40Finding 10 Percent of a Number

Riddle 37 . . . . . . . . . . . . . . . . . . . . 41Finding Percent of a Money Amount

Riddle 38 . . . . . . . . . . . . . . . . . . . . 42Solving Word Problems: Money

Riddle 39 . . . . . . . . . . . . . . . . . . . . 43Solving Word Problems: Measurement

Riddle 40 . . . . . . . . . . . . . . . . . . . . 44Solving Word Problems: Time

Answers . . . . . . . . . . . . . . . . . . . . . 45

Contents

Decimals & Percents Practice Puzzles © Bob Hugel, Scholastic Teaching Resources

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elcome to FunnyBoneBooks: Decimals &

Percents Practice Puzzles, a surefire way to get studentsexcited about math. This bookcombines decimal and percentproblems with loads of hilariousriddles guaranteed to get studentsrevved up for learning.

As you may know, one of the keys tohelping students learn successfully is to make learningfun. That’s why each page of Decimals & Percents Practice Puzzlesstarts with an amusing riddle. We hope your students will be motivated to solve the math problems because the answers willhelp them find the rib-tickling solution to each riddle.

Along the way, your students will get drilled on several decimalskills, including rounding, comparing, adding and subtracting decimals that are in different places, and multiplying and dividingdecimals. They’ll also get practice solving money math problemsand working with percents. Finally, they’ll convert fractions to decimals, decimals to fractions, and decimals to percents.

We hope your students enjoy Decimals & Percents Practice Puzzlesand benefit from the skills presented in this book. By making mathenjoyable, we hope to reveal a terrific secret to your students—math is lots of fun!

Introduction

W

Decimals & Percents Practice Puzzles © Bob Hugel, Scholastic Teaching Resources

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What do you call atree root with fourequal sides?

What To DoAnswer the questions below. Match each answer to a letter in the Key. Then write the

letter in the space above its problem number to find the answer to the riddle.

BUILDING VOCABULARY

Riddle 1

Circle the numeral in the ones place: 5.8Circle the numeral in the tenths place: 5.08Circle the numeral in the hundredths place: 4.26Circle the numeral in the tenths place: 32.75Circle the numeral in the hundredths place: 461.925

8 . . . . . . . . . . E0 . . . . . . . . . . O6 . . . . . . . . . . A5 . . . . . . . . . . S9 . . . . . . . . . . T

3 . . . . . . . . . . R1 . . . . . . . . . . Q4 . . . . . . . . . . U7 . . . . . . . . . . R2 . . . . . . . . . . O

1

2

3

4

5

6

7

8

9

10

Circle the numeral in the tens place: 83.403Circle the numeral in the hundreds place: 495.893Circle the numeral in the thousandths place: 2.691Circle the numeral in the hundredths place: 753.4362Circle the numeral in the thousandths place: 4.12967

NAME DATE

A ___ ___ ___ ___ ___ ___ ___ ___ ___ ___1 8 7 3 9 6 4 5 2 10

Riddle Answer

Decimals & Percents Practice Puzzles © Bob Hugel, Scholastic Teaching Resources

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ROUNDING DECIMALS TO THE NEAREST WHOLE NUMBER

Why did the farmer want the tree, instead of his dog, to guard his sheep?

What To DoRound each decimal to the nearest whole number.

Match each answer to a letter in the Key. Then write the letter in the space above its problem number to find the answer to the riddle.

NAME DATE

Riddle 2

1.7 = ________

5.3 = ________

8.4 = ________

3.6 = ________

1.3 = ________

3 . . . . . . . . . . U9 . . . . . . . . . . R6 . . . . . . . . . . C4 . . . . . . . . . . A8 . . . . . . . . . . R

14 . . . . . . . . . . D7 . . . . . . . . . . N1 . . . . . . . . . . A5 . . . . . . . . . . E

13 . . . . . . . . . . J

10 . . . . . . . . . . O20 . . . . . . . . . . B

2 . . . . . . . . . . K12 . . . . . . . . . . M21 . . . . . . . . . . I

1

2

3

4

5

6

7

8

9

10

9.8 = ________

12.4 = ________

9.1 = ________

20.3 = ________

14.2 = ________

6

The tree h ___ ___ ___ ___ ___ ___ ___ ___ ___ ___.4 10 7 6 8 2 9 5 3 1

Riddle Answer

Decimals & Percents Practice Puzzles © Bob Hugel, Scholastic Teaching Resources

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What did the blanketsay to the bed?

What To DoRound each decimal to the nearest 10th place.

Match each answer to a letter in the Key. Then write the letter in the space above its problem number to find the answer to the riddle.

ROUNDING DECIMALS TO THE NEAREST 10TH PLACE

Riddle 3

2.39 = _____

6.76 = _____

5.12 = _____

10.84 = _____

1.91 = _____

8.3 . . . . . . . . D1.9 . . . . . . . . C

12.6 . . . . . . . . A2.4 . . . . . . . . U

25.5 . . . . . . . . E

30 . . . . . . . . . . M12.7 . . . . . . . . O5.1 . . . . . . . . R

10.8 . . . . . . . . E30.1 . . . . . . . . V

5.2 . . . . . . . . B10.9 . . . . . . . . F

6.8 . . . . . . . . Y17.2 . . . . . . . . O

8.2 . . . . . . . . W

1

2

3

4

5

6

7

8

9

10

17.23 = _____

25.48 = _____

8.26 = _____

30.07 = _____

12.66 = _____

NAME DATE

“I’ve got ___ ___ ___ ___ ___ ___ ___ ___ ___ ___.”2 6 1 5 10 9 7 3 4 8

Riddle Answer

Decimals & Percents Practice Puzzles © Bob Hugel, Scholastic Teaching Resources

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ROUNDING DECIMALS TO THE NEAREST 100TH PLACE

Why did the Earthmake the sun dizzy?

What To DoRound each decimal to the nearest 100th place.

Match each answer to a letter in the Key. Then write the letter in the space above its problem number to find the answer to the riddle.

NAME DATE

Riddle 4

5.257 = _____

7.846 = _____

10.629 = _____

8.474 = _____

3.991 = _____

1.37 . . . . . . . . L10.62 . . . . . . . . F2.17 . . . . . . . A7.85 . . . . . . . C

15.78 . . . . . . . . S

2.16 . . . . . . . . I5.26 . . . . . . . . I

15.80 . . . . . . . K9.12 . . . . . . . C8.47 . . . . . . . N

5.25 . . . . . . . O10.63 . . . . . . . . E

8.48 . . . . . . . B3.99 . . . . . . . D

20.55 . . . . . . . R

1

2

3

4

5

6

7

8

9

10

2.163 = _____

15.782 = _____

1.367 = _____

20.554 = _____

9.123 = _____

8

It went aroun ___ ___ ___ ___ ___ ___ ___ ___ ___ ___.5 1 4 10 6 9 2 8 3 7

Riddle Answer

Decimals & Percents Practice Puzzles © Bob Hugel, Scholastic Teaching Resources

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What did the bee say before eating itsfavorite meal?

What To DoIn each problem, circle the decimal that is greater. Match each answer

to a letter in the Key. Then write the letter in the space above its problem number to find the answer to the riddle.

COMPARING DECIMALS

“T ___ ___ ___ ___ ___ , ___ ___ ___ ___ ___!”10 3 4 6 9 2 8 7 1 5

Riddle Answer

Riddle 5

6.2 or 5.7

3.1 or 2.9

4.45 or 4.48

7.6 or 7.63

9.071 or 9.08

7.63 . . . . . . . N9.08 . . . . . . . Y6.2 . . . . . . . . E

75.1 . . . . . . . . H4.48 . . . . . . . A

20.099 . . . . . . . V9.071 . . . . . . . R3.1 . . . . . . . . H

32.461 . . . . . . . S2.9 . . . . . . . . X

15.4 . . . . . . . . K5.658 . . . . . . N

75.014 . . . . . . . T5.649 . . . . . . G

20.83 . . . . . . . O

1

2

3

4

5

6

7

8

9

10

15.4 or 14.5

5.658 or 5.649

20.83 or 20.099

32.364 or 32.461

75.014 or 75.1

NAME DATE

Decimals & Percents Practice Puzzles © Bob Hugel, Scholastic Teaching Resources

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CONVERTING FRACTIONS TO DECIMALS

How can the pots tellwhen the kettle is mad?

What To Do

NAME DATE

Riddle 6

0.5 . . . . . . . . S0.18 . . . . . . . S0.01 . . . . . . . T0.99 . . . . . . . E0.003 . . . . . . A

0.05 . . . . . . . . . . V4.63 . . . . . . . . . . N0.463 . . . . . . . . . W0.3 . . . . . . . . . . G0.1 . . . . . . . . . . B

0.25 . . . . . . . . . . M0.06 . . . . . . . . . . L0.03 . . . . . . . . . . I0.6 . . . . . . . . . . O0.7 . . . . . . . . . . L

10

It ___ ___ ___ ___ ___ off ___ ___ ___ ___ ___.1 3 7 9 2 4 6 8 10 5

Riddle Answer

Convert the fractions below into decimals. Match each answer to a letter in the Key. Then write the letter in the space above its problem

number to find the answer to the riddle.

= _______

= _______

= _______

= _______

= _______

1

2

3

4

5

6

7

8

9

10

110

510

710

18100

25100

= _______

= _______

= _______

= _______

= _______

1100

60100

99100

4631,000

31,000

Decimals & Percents Practice Puzzles © Bob Hugel, Scholastic Teaching Resources

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What To DoConvert the fractions below into decimals. Match each answer

to a letter in the Key. Then write the letter in the space above its problem number to find the answer to the riddle.

CONVERTING FRACTIONS TO DECIMALS

Riddle 7

0.125 . . . . . . T0.2 . . . . . . . . E0.7 . . . . . . . . T0.4 . . . . . . . . L0.8 . . . . . . . G

0.525 . . . . . . T0.25 . . . . . . O0.6 . . . . . . . A0.3 . . . . . . . W0.575 . . . . . . Z

0.03 . . . . . . . P0.04 . . . . . . . B0.75 . . . . . . H0.06 . . . . . . . I0.5 . . . . . . . O

NAME DATE

“___ ___ ___ ’s ___ ___ ___ ___ ___ ___ ___!”1 6 5 9 2 10 8 3 7 4

Riddle Answer

= _______

= _______

= _______

= _______

= _______

1

2

3

4

5

6

7

8

9

10

25

312

1938

18

710

= _______

= _______

= _______

= _______

= _______

525

6100

4280

2736

6200

What did the rabbit say to get the other rabbits moving?

Decimals & Percents Practice Puzzles © Bob Hugel, Scholastic Teaching Resources

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CONVERTING DECIMALS TO FRACTIONS

What did the cow say to the tractor that wasblocking its path?

What To Do

NAME DATE

Riddle 8

0.1 = _____

0.3 = _____

0.5 = _____

0.8 = _____

0.2 = _____

1/25 . . . . . . . W1/100 . . . . . . R3/10 . . . . . . . S1/12 . . . . . . . I1/5 . . . . . . . A

1/4 . . . . . . . O3/25 . . . . . . . E23/50 . . . . . . L46/1,000 . . . . U1/2 . . . . . . . E

4/5 . . . . . . . E1/10 . . . . . . . M5/100 . . . . . . N3/5 . . . . . . . O37/100 . . . . . V

1

2

3

4

5

6

7

8

9

10

0.6 = _____

0.25 = _____

0.37 = _____

0.46 = _____

0.12 = _____

“P ___ ___ ___ ___ ___ ___ ___ ___ – ___ ___.”9 4 5 2 10 1 6 7 8 3

Riddle Answer

Convert the decimals below into fractions. Write your answers in simplest terms.Match each answer to a letter in the Key. Then write the letter in the space

above its problem number to find the answer to the riddle.

Decimals & Percents Practice Puzzles © Bob Hugel, Scholastic Teaching Resources

Page 13: Decimals & Percents Practice Puzzles

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Why did the windowsucceed in business?

What To DoConvert the mixed numbers below into decimals. Match each answer

to a letter in the Key. Then write the letter in the space above its problem number to find the answer to the riddle.

CONVERTING MIXED NUMBERS TO DECIMALS

Riddle 9

35.16 . . . . . . . E26.5 . . . . . . . . W59.675 . . . . . . Y

186.5 . . . . . . . . C12.045 . . . . . . F

5.1 . . . . . . . . S17.031 . . . . . . P17.31 . . . . . . . I67.08 . . . . . . . O4.7 . . . . . . . . N

12.45 . . . . . . . A186.005 . . . . . . L

95.48 . . . . . . . A5.01 . . . . . . . D

67.800 . . . . . . B

It was ___ ___ ___ ___ ___ ___ ___ ___ ___ ___.4 10 3 7 9 1 6 8 5 2

Riddle Answer

NAME DATE

= _______

= _______

= _______

= _______

= _______

1

2

3

4

5

15

4

26

12

35

10

710

510

45100

16100

= _______

= _______

= _______

= _______

= _______

6

7

8

9

10

867

95

17

59

186

100

48100

311,000

6751,000

51,000

Decimals & Percents Practice Puzzles © Bob Hugel, Scholastic Teaching Resources

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CONVERTING MIXED NUMBERS TO DECIMALS

What is a dog’s favoritetype of clothing?

What To DoConvert the mixed numbers below into decimals. Match each answer

to a letter in the Key. Then write the letter in the space above its problem number to find the answer to the riddle.

NAME DATE

Riddle 10

8.875 . . . . . . A10.5 . . . . . . . B12.625 . . . . . T2.3 . . . . . . . P

20.4 . . . . . . . . R

3.2 . . . . . . . D1.75 . . . . . . . A

10.25 . . . . . . N5.4 . . . . . . . . M4.5 . . . . . . . P

5.8 . . . . . . . A3.75 . . . . . . I6.5 . . . . . . . S6.25 . . . . . . E

12.725 . . . . . W

14

___ ___ ___ ___ ___ of ___ ___ ___ ___ ___2 4 6 8 10 1 3 5 7 9

Riddle Answer

= _______

= _______

= _______

= _______

= _______

1

2

3

4

5

14

1

5

2

10

2

34

45

310

14

78

58

1520

2040

820

= _______

= _______

= _______

= _______

= _______

6

7

8

9

10

8

12

3

6

20

Decimals & Percents Practice Puzzles © Bob Hugel, Scholastic Teaching Resources

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6 2 10 8 4 3 7 1 5 9

15

Why was the tired criminalglad when the cops came?

What To DoIn each problem, circle the fraction or decimal that is greater. Match each answer

to a letter in the Key. Then write the letter in the space above its problem number to find the answer to the riddle.

COMPARING DECIMALS AND FRACTIONS

Riddle 11

or 0.58

or 0.72

or 0.49

or 0.16

or 0.93

0.93 . . . . . . . . . S24/30 . . . . . . . M7/8 . . . . . . . . R

0.58 . . . . . . . E9/20 . . . . . . . . A

8/16 . . . . . . . . V

0.536 . . . . . . E

0.001 . . . . . . Q

0.49 . . . . . . . B14/56 . . . . . . . N

3/4 . . . . . . . . D

0.785 . . . . . . K1/10 . . . . . . . . T15/40 . . . . . . . R6/10 . . . . . . . . R

1

2

3

4

5

6

7

8

9

10

or 0.22

or 0.785

or 0.357

or 0.001

or 0.536

NAME DATE

81634

610

920

2430

145678

1540

110

2650

He was now u ___ ___ ___ ___ ___ ___ – ___ ___ ___ ___.

Riddle Answer

Decimals & Percents Practice Puzzles © Bob Hugel, Scholastic Teaching Resources

Page 16: Decimals & Percents Practice Puzzles

ADDING DECIMALS IN EXPANDED FORM

Why did the phone stop calling the answering machine?

What To DoSolve the addition problems below. Match each answer

to a letter in the Key. Then write the letter in the space above its problem number to find the answer to the riddle.

NAME DATE

Riddle 12

1 + 0.5 = ______

4 + 0.6 = ______

8 + 0.9 + 0.01 = ______

5 + 0.8 + 0.03 = ______

0.2 + 0.09 = ______

8.91 . . . . . . . . E10.3 . . . . . . . . T0.029 . . . . . . . I9.658 . . . . . . M4.07 . . . . . . . N

83.65 . . . . . . . B7.124 . . . . . . . S0.29 . . . . . . . . E

10.003 . . . . . . A83.065 . . . . . . . S

5.83 . . . . . . . D1.5 . . . . . . . . E4.6 . . . . . . . . G0.47 . . . . . . . . S1.05 . . . . . . . O

1

2

3

4

5

6

7

8

9

10

0.4 + 0.07 = ______

7 + 0.1 + 0.02 + 0.004 = ______

9 + 0.6 + 0.05 + 0.008 = ______

80 + 3 + 0.06 + 0.005 = ______

10 + 0.003 = ______

16

It never return ___ ___ ___ ___ ___ ___ ___ ___ ___ ___.1 4 8 3 9 7 10 2 5 6

Riddle Answer

Decimals & Percents Practice Puzzles © Bob Hugel, Scholastic Teaching Resources

Page 17: Decimals & Percents Practice Puzzles

It was a ___ ___ ___ ___ ___ ___ – ___ ___ ___ ___.3 9 7 2 8 5 4 6 10 1

Riddle Answer

17

Why was the birdafraid to fly?

What To DoSolve the addition problems below. Match each answer

to a letter in the Key. Then write the letter in the space above its problem number to find the answer to the riddle.

ADDING DECIMALS AND WHOLE NUMBERS

Riddle 13

3 + 1.4 = ______

6 + 2.7 = ______

8 + 5.5 = ______

4 + 9.3 = ______

5 + 6.1 = ______

13.5 . . . . . . . S16.67 . . . . . . A11.1 . . . . . . . D23.93 . . . . . . E9.7 . . . . . . . L

4.4 . . . . . . . W418.16 . . . . . . . I

28.542 . . . . . C9.3 . . . . . . . M

41.816 . . . . . O

6.6 . . . . . . . K18.25 . . . . . . R13.3 . . . . . . . C

8.7 . . . . . . . R14.3 . . . . . . . P

1

2

3

4

5

6

7

8

9

10

10 + 8.25 = ______

2 + 14.67 = ______

20 + 3.93 = ______

11 + 17.542 = ______

25 + 16.816 = ______

NAME DATE

Decimals & Percents Practice Puzzles © Bob Hugel, Scholastic Teaching Resources

Page 18: Decimals & Percents Practice Puzzles

ADDING DECIMALS IN THE 10TH PLACE

Why did the saladfeel naked?

What To DoSolve the addition problems below. Match each answer to a

letter in the Key. Then write the letter in the space above its problem number to find the answer to the riddle.

NAME DATE

Riddle 14

0.4 + 0.3 = _________

0.8 + 0.2 = _________

0.5 + 0.6 = _________

0.2 + 0.6 = _________

0.3 + 0.9 = _________

18.8 . . . . . . . . D0.7 . . . . . . . . R1.2 . . . . . . . . E

35.1 . . . . . . . . Q36.1 . . . . . . . . S

0.11 . . . . . . . H41.13 . . . . . . . O1 . . . . . . . . . . N0.8 . . . . . . . . G

17.4 . . . . . . . . I

0.12 . . . . . . . W16.14 . . . . . . . K

1.1 . . . . . . . . S42.3 . . . . . . . . Y13.4 . . . . . . . . N

1

2

3

4

5

6

7

8

9

10

10.1 + 8.7 = _________

15.6 + 1.8 = _________

9.9 + 3.5 = _________

20.7 + 15.4 = _________

8.4 + 33.9 = _________

18

It didn’t have a ___ ___ ___ ___ ___ ___ ___ ___ ___ ___.8 10 6 1 5 3 9 7 2 4

Riddle Answer

Decimals & Percents Practice Puzzles © Bob Hugel, Scholastic Teaching Resources

Page 19: Decimals & Percents Practice Puzzles

What To Do

0.46 + 0.21 = ______

0.35 + 0.35 = ______

6.48 + 3.42 = ______

10.72 + 2.15 = ______

9.59 + 8.67 = ______

1

2

3

4

5

6

7

8

9

10

0.174 + 0.503 = ______

0.892 + 0.982 = ______

16.066 + 1.338 = ______

5.249 + 22.916 = ______

18.451 + 13.547 = ______

It ___ ___ ___ ___ ___ ___ – ___ ___ ___ ___.9 5 1 4 6 10 8 2 3 7

Riddle Answer

19

Which planet wonthe singing contest?

ADDING DECIMALS IN THE 100TH AND 1,000TH PLACE

Riddle 15

0.67 . . . . . . . S17.26 . . . . . . . K9.9 . . . . . . . . N1.874 . . . . . . E

18.26 . . . . . . . A

0.1874 . . . . . D31.998 . . . . . . P0.7 . . . . . . . . U0.677 . . . . . . E

12.87 . . . . . . . N

16.39 . . . . . . . I12.78 . . . . . . . O27.15 . . . . . . . X28.165 . . . . . . W17.404 . . . . . . T

NAME DATE

Solve the addition problems below. Match each answer to a letter in the Key. Then write the letter in the space above its problem

number to find the answer to the riddle.

Decimals & Percents Practice Puzzles © Bob Hugel, Scholastic Teaching Resources

Page 20: Decimals & Percents Practice Puzzles

ADDING DECIMALS IN DIFFERENT PLACES

Why was the hockeyplayer always in trouble?

What To DoSolve the addition problems below. Match each answer to a letter

in the Key. Then write the letter in the space above its problem number to find the answer to the riddle.

NAME DATE

Riddle 16

0.23 + 3.4 = ______

0.456 + 0.25 = ______

7.2 + 8.68 = ______

0.129 + 0.47 = ______

1.53 + 0.397 = ______

15.096 . . . . . . T109.874 . . . . . . E93.742 . . . . . . H0.706 . . . . . . N

53.348 . . . . . . . I

5.7 . . . . . . . . G0.481 . . . . . . L0.599 . . . . . . N

15.88 . . . . . . . D9.4 . . . . . . . . A

3.63 . . . . . . . O32.812 . . . . . . . I

6.96 . . . . . . . B289.6 . . . . . . . . U

1.927 . . . . . . C

1

2

3

4

5

6

7

8

9

10

27.4 + 0.352 + 5.06 = ______

0.486 + 13.9 + 0.71 = ______

100.8 + 8.75 + 0.324 = ______

73.1 + 0.112 + 20.53 = ______

3.368 + 26.28 + 23.7 = ______

20

He skate ___ ___ ___ ___ ___ ___ ___ ___ ___ ___.3 1 4 7 9 10 2 6 5 8

Riddle Answer

Decimals & Percents Practice Puzzles © Bob Hugel, Scholastic Teaching Resources

Page 21: Decimals & Percents Practice Puzzles

What To DoIn each problem below, estimate the sums to a reasonable whole number. Match each answer to a letter in the Key. Then write the letter in the space

above its problem number to find the answer to the riddle.

6.6 + 7.1 = ______

1.4 + 2.8 = ______

5.3 + 1.9 = ______

3.1 + 11.8 = ______

8.3 + 9.9 = ______

1

2

3

4

5

6

7

8

9

10

0.11 + 2.68 = ______

5.24 + 3.67 = ______

7.55 + 3.47 = ______

35.18 + 8.67 = ______

104.62 + 104.47 = ______

It never gets ___ ___ ___ ___ ___ ___ ___ ___ ___ ___.4 8 7 6 5 3 2 1 10 9

Riddle Answer

21

Why is it hard to listento a circle speak?

ESTIMATING SUMS

Riddle 17

3 . . . . . . . . . . H44 . . . . . . . . . . T15 . . . . . . . . . . T14 . . . . . . . . . . I7 . . . . . . . . . . P

209 . . . . . . . . . . N11 . . . . . . . . . . O4 . . . . . . . . . . O

18 . . . . . . . . . . E9 . . . . . . . . . . T

6 . . . . . . . . . . I13 . . . . . . . . . . P

2 . . . . . . . . . . M43 . . . . . . . . . . D

208 . . . . . . . . . . H

NAME DATE

Decimals & Percents Practice Puzzles © Bob Hugel, Scholastic Teaching Resources

Page 22: Decimals & Percents Practice Puzzles

SUBTRACTING DECIMALS IN THE 10TH PLACE

What did the shovel say to the sick bucket?

What To DoSolve the subtraction problems below. Match each answer to a letter

in the Key. Then write the letter in the space above its problem number to find the answer to the riddle.

NAME DATE

Riddle 18

0.4 – 0.3 = ________

0.5 – 0.1 = ________

0.7 – 0.5 = ________

0.8 – 0.3 = ________

0.9 – 0.2 = ________

0.2 . . . . . . . O0.8 . . . . . . . K4.7 . . . . . . . . P0.7 . . . . . . . O6.4 . . . . . . . R

1 . . . . . . . . . A0.5 . . . . . . . A3.6 . . . . . . . W0.1 . . . . . . . . I1.8 . . . . . . . . L

5.6 . . . . . . . . L3 . . . . . . . . . U0.4 . . . . . . . O1.2 . . . . . . . O6.6 . . . . . . . . Z

1

2

3

4

5

6

7

8

9

10

10.6 – 7.6 = ________

12.9 – 8.2 = ________

4.4 – 3.6 = ________

3.7 – 1.9 = ________

15.4 – 9.8 = ________

22

“Y ___ ___ ___ ___ ___ ___ ___ ___ ___ ___!”3 6 9 2 5 8 7 4 1 10

Riddle Answer

Decimals & Percents Practice Puzzles © Bob Hugel, Scholastic Teaching Resources

Page 23: Decimals & Percents Practice Puzzles

___ ___ was a ___ ___ ___ ___ ___ – ___ ___ ___.3 6 1 10 4 9 8 5 7 2

Riddle Answer

23

Why did the horse keep stopping?

What To DoSolve the subtraction problems below. Match each answer to a letter

in the Key. Then write the letter in the space above its problem number to find the answer to the riddle.

SUBTRACTING WHOLE NUMBERS FROM DECIMALS

Riddle 19

5.5 – 4 = ________

8.3 – 6 = ________

2.7 – 1 = ________

6.4 – 2 = ________

10.6 – 3 = ________

3.4 . . . . . . . . R1.8 . . . . . . . . P7.6 . . . . . . . . . I1.5 . . . . . . . . S0.8 . . . . . . . . . L

4.3 . . . . . . . . O11.2 . . . . . . . . T5.5 . . . . . . . . W2.3 . . . . . . . . N9.1 . . . . . . . . . L

2.6 . . . . . . . . F6.7 . . . . . . . . E1.7 . . . . . . . . . I4.4 . . . . . . . . A2.9 . . . . . . . . T

1

2

3

4

5

6

7

8

9

10

12.9 – 10 = ________

9.3 – 5 = ________

20.1 – 11 = ________

8.8 – 8 = ________

25.2 – 14 = ________

NAME DATE

Decimals & Percents Practice Puzzles © Bob Hugel, Scholastic Teaching Resources

Page 24: Decimals & Percents Practice Puzzles

SUBTRACTING DECIMALS FROM WHOLE NUMBERS

Why was the shirt sad?

What To Do

NAME DATE

Riddle 20

6 – 1.5 = ________

8 – 4.2 = ________

5 – 3.3 = ________

10 – 6.4 = ________

16 – 13.1 = ________

4.5 . . . . . . . . S5.5 . . . . . . . . R

12.2 . . . . . . . . E1.7 . . . . . . . . B3.6 . . . . . . . . A

46.7 . . . . . . . . . L4.2 . . . . . . . . O3.8 . . . . . . . . U2.9 . . . . . . . . . I

22.4 . . . . . . . . T

13.2 . . . . . . . . D7.5 . . . . . . . . K

24.2 . . . . . . . . Q47.3 . . . . . . . . E

4.1 . . . . . . . . W

1

2

3

4

5

6

7

8

9

10

20 – 7.8 = ________

33 – 10.6 = ________

50 – 2.7 = ________

45 – 40.9 = ________

76 – 29.3 = ________

24

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

Riddle Answer

Solve the subtraction problems below. Match each answer to a letter in the Key. Then write the letter in the space above its problem number to find

the answer to the riddle.

Decimals & Percents Practice Puzzles © Bob Hugel, Scholastic Teaching Resources

Page 25: Decimals & Percents Practice Puzzles

25

What do boxers dobefore going to bed?

What To DoSolve the subtraction problems below. Match each answer to a letter in the Key.

Then write the letter in the space above its problem number to find the answer to the riddle.

SUBTRACTING DECIMALS IN THE 100TH AND 1,000TH PLACE

Riddle 21

0.44 – 0.22 = ______

0.26 – 0.16 = ______

0.89 – 0.37 = ______

0.957 – 0.925 = ______

1.538 – 0.724 = ______

2.39 . . . . . . . . F0.032 . . . . . . . I3.24 . . . . . . . O0.345 . . . . . . G0.239 . . . . . . . V

15.08 . . . . . . . H0.52 . . . . . . . . L0.32 . . . . . . . . E

15.8 . . . . . . . . G0.22 . . . . . . . . I

0.052 . . . . . . . P8.14 . . . . . . . A0.1 . . . . . . . . T0.814 . . . . . . . L

10.362 . . . . . . W

1

2

3

4

5

6

7

8

9

10

9.43 – 6.19 = ______

20.11 – 5.03 = ______

6.25 – 3.86 = ______

30.625 – 20.263 = ______

8.917 – 8.572 = ______

NAME DATE

They have a p ___ ___ ___ ___ ___ ___ ___ ___ ___ ___.1 5 3 6 9 8 4 10 7 2

Riddle Answer

Decimals & Percents Practice Puzzles © Bob Hugel, Scholastic Teaching Resources

Page 26: Decimals & Percents Practice Puzzles

SUBTRACTING DECIMALS IN DIFFERENT PLACES

Why did the father keepgiving his children candy?

What To DoSolve the subtraction problems below. Match each answer to a letter

in the Key. Then write the letter in the space above its problem number to find the answer to the riddle.

NAME DATE

Riddle 22

11.54 – 5.1 = ______

20.1 – 5.04 = ______

5.6 – 1.29 = ______

16.92 – 7.5 = ______

8.864 – 3.41 = ______

8.776 . . . . . . . I5.454 . . . . . . A

15.14 . . . . . . . K6.44 . . . . . . . . P

17.21 . . . . . . . . L

15.06 . . . . . . . . S33.938 . . . . . . . P42.78 . . . . . . . U33.942 . . . . . . W9.42 . . . . . . . . L

4.31 . . . . . . . O4.278 . . . . . . O

17.19 . . . . . . . . E11.269 . . . . . . . L

4.49 . . . . . . . N

1

2

3

4

5

6

7

8

9

10

65.75 – 31.812 = ______

50.376 – 41.6 = ______

27.2 – 9.99 = ______

30.1 – 18.831 = ______

10.8 – 6.522 = ______

26

He wa ___ ___ ___ ___ ___ ___ ___ – ___ ___ ___.2 5 8 10 4 9 7 1 3 6

Riddle Answer

Decimals & Percents Practice Puzzles © Bob Hugel, Scholastic Teaching Resources

Page 27: Decimals & Percents Practice Puzzles

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

Riddle Answer

27

Why didn’t anyonetrust the lamp?

What To DoSolve the multiplication problems below. Match each answer to a letter in the Key. Then write the letter in the space above its problem number

to find the answer to the riddle.

MULTIPLYING DECIMALS AND WHOLE NUMBERS

Riddle 23

1 x 0.2 = ________

10 x 0.4 = ________

6 x 0.7 = ________

10 x 4.8 = ________

7 x 10.3 = ________

10 . . . . . . . . . . M38.7 . . . . . . . . W37.8 . . . . . . . . A72.1 . . . . . . . . D4 . . . . . . . . . . W

19 . . . . . . . . . . Y53 . . . . . . . . . . I0.2 . . . . . . . . S

48 . . . . . . . . . . H51 . . . . . . . . . . I

71.2 . . . . . . . . O19.8 . . . . . . . . U

4.2 . . . . . . . . T18.9 . . . . . . . . A73.8 . . . . . . . . S

1

2

3

4

5

6

7

8

9

10

2 x 9.5 = ________

3 x 12.6 = ________

1 x 18.9 = ________

2 x 25.5 = ________

9 x 8.2 = ________

NAME DATE

Decimals & Percents Practice Puzzles © Bob Hugel, Scholastic Teaching Resources

Page 28: Decimals & Percents Practice Puzzles

MULTIPLYING DECIMALS AND WHOLE NUMBERS

What fruit is round,red, and always puts its best foot forward?

What To DoSolve the multiplication problems below. Match each answer to a letter

in the Key. Then write the letter in the space above its problem number to find the answer to the riddle.

NAME DATE

Riddle 24

6.43 x 5 = ______

2.95 x 4 = ______

5.08 x 6 = ______

9.36 x 10 = ______

4.88 x 20 = ______

114.88 . . . . . . . . T97.6 . . . . . . . . O32.15 . . . . . . . . E1.18 . . . . . . . N

21 . . . . . . . . . . U

93.6 . . . . . . . . T357 . . . . . . . . . . D230.12 . . . . . . . O30.48 . . . . . . . M9.36 . . . . . . . X

11.8 . . . . . . . . E35.7 . . . . . . . . . I56.7 . . . . . . . . R

210 . . . . . . . . . . A3.215 . . . . . . . B

1

2

3

4

5

6

7

8

9

10

1.62 x 35 = ______

7.18 x 16 = ______

10.46 x 22 = ______

5.25 x 40 = ______

3.57 x 100 = ______

28

A ___ ___ ___ ___ ___ ___ ___ – ___ ___ ___6 1 10 4 8 3 9 7 5 2

Riddle Answer

Decimals & Percents Practice Puzzles © Bob Hugel, Scholastic Teaching Resources

Page 29: Decimals & Percents Practice Puzzles

“B ___ ___ ___ ___ ___ ___ ___ ___ ___ ___!”8 1 10 9 5 6 4 7 2 3

Riddle Answer

29

What did the dog say to the other dog beforesharing his food?

What To DoSolve the multiplication problems below. Match each answer to a letter

in the Key. Then write the letter in the space above its problem number to find the answer to the riddle.

MULTIPLYING DECIMALS BY DECIMALS

Riddle 25

0.5 x 0.5 = ________

0.8 x 0.4 = ________

0.2 x 0.7 = ________

0.3 x 1.9 = ________

0.6 x 3.3 = ________

3.92 . . . . . . P41.2296 . . . . A1.98 . . . . . . P

43.3026 . . . . E2.5 . . . . . . . W

0.32 . . . . . . . I52.5 . . . . . . . K3.2 . . . . . . . U0.14 . . . . . . T

39.2 . . . . . . . L

1,725.58 . . . . . . X17.2558 . . . . O

5.25 . . . . . . T0.25 . . . . . . N0.57 . . . . . . E

1

2

3

4

5

6

7

8

9

10

4.9 x 0.8 = ________

2.1 x 2.5 = ________

3.61 x 4.78 = ________

12.57 x 3.28 = ________

17.82 x 2.43 = ________

NAME DATE

Decimals & Percents Practice Puzzles © Bob Hugel, Scholastic Teaching Resources

Page 30: Decimals & Percents Practice Puzzles

MULTIPLYING DECIMALS IN DIFFERENT PLACES

Why did the truck quit working at theconstruction site?

What To DoSolve the multiplication problems below. Match each answer to a letter

in the Key. Then write the letter in the space above its problem number to find the answer to the riddle.

NAME DATE

Riddle 26

0.5 x 0.73 = ________

0.4 x 0.16 = ________

0.7 x 0.243 = ________

2.3 x 0.388 = ________

7.6 x 1.451 = ________

11.0276 . . . . . N9.56672 . . . . . D

37.16295 . . . . . E3.65 . . . . . . . . I0.064 . . . . . . O

1.2191 . . . . . . P0.365 . . . . . . U6.4 . . . . . . . . C

110.276 . . . . . . . F0.8924 . . . . . G

12.191 . . . . . . K30.03616 . . . . . D

5.205 . . . . . . N1.701 . . . . . . A0.1701 . . . . . M

1

2

3

4

5

6

7

8

9

10

0.167 x 7.3 = ________

2.082 x 2.5 = ________

3.333 x 11.15 = ________

8.096 x 3.71 = ________

1.48 x 6.464 = ________

30

It was tired of bei ___ ___ ___ ___ ___ ___ ___ ___ ___ ___.5 4 9 1 3 6 8 10 2 7

Riddle Answer

Decimals & Percents Practice Puzzles © Bob Hugel, Scholastic Teaching Resources

Page 31: Decimals & Percents Practice Puzzles

It was ___ ___ ___ ___ ___ ___ ___ ___ ___ ___.8 10 6 5 3 7 9 2 1 4

Riddle Answer

31

Why was the fishasked to tell jokes?

What To DoSolve the division problems below. Match each answer to a letter in the Key. Then write the letter in the space above its problem

number to find the answer to the riddle.

DIVIDING WHOLE NUMBERS BY DECIMALS

Riddle 27

5 ÷ 0.5 = ________

12 ÷ 1.5 = ________

33 ÷ 2.2 = ________

66 ÷ 3.3 = ________

105 ÷ 4.2 = ________

20 . . . . . . . . H8 . . . . . . . . I

12 . . . . . . . . A100 . . . . . . . . P25 . . . . . . . . O

75 . . . . . . . . D5 . . . . . . . . B

15 . . . . . . . W50 . . . . . . . . N30 . . . . . . . . C

42 . . . . . . . . Z16 . . . . . . . . L65 . . . . . . . . F80 . . . . . . . M10 . . . . . . . . S

1

2

3

4

5

6

7

8

9

10

120 ÷ 7.5 = ________

265 ÷ 5.3 = ________

114 ÷ 9.5 = ________

546 ÷ 8.4 = ________

372 ÷ 12.4 = ________

NAME DATE

Decimals & Percents Practice Puzzles © Bob Hugel, Scholastic Teaching Resources

Page 32: Decimals & Percents Practice Puzzles

DIVIDING DECIMALS BY DECIMALS

What did the elephantsay about the flies?

What To DoSolve the division problems below. Match each answer to a letter in the Key. Then write the letter in the space above its problem

number to find the answer to the riddle.

NAME DATE

Riddle 28

0.1 ÷ 0.5 = ________

0.5 ÷ 0.2 = ________

3.8 ÷ 0.8 = ________

2.4 ÷ 0.6 = ________

14.7 ÷ 2.4 = ________

2.5 . . . . . . . . . L6.125 . . . . . . . G9.5 . . . . . . . . . B2 . . . . . . . . . . O4 . . . . . . . . . . U

0.2 . . . . . . . . . M1 . . . . . . . . . . N3.4 . . . . . . . . . A

67 . . . . . . . . . . . E0.475 . . . . . . . P

5 . . . . . . . . . . . Y6.7 . . . . . . . . . R6.5 . . . . . . . . . L4.75 . . . . . . . . E0.4 . . . . . . . . . I

1

2

3

4

5

6

7

8

9

10

20.1 ÷ 0.3 = ________

12.5 ÷ 2.5 = ________

30.4 ÷ 3.2 = ________

50.15 ÷ 14.75 = ________

66.56 ÷ 10.24 = ________

32

“They r ___ ___ ___ ___ ___ ___ ___ ___ ___ ___!”6 9 10 2 7 8 4 5 1 3

Riddle Answer

Decimals & Percents Practice Puzzles © Bob Hugel, Scholastic Teaching Resources

Page 33: Decimals & Percents Practice Puzzles

What To DoSolve the division problems below. Match each answer to a letter in the Key. Then write the letter in the space above its problem

number to find the answer to the riddle.

12.4 ÷ 3.2 = ______

20.8 ÷ 5.2 = ______

28.75 ÷ 4.6 = ______

18.24 ÷ 1.5 = ______

67.248 ÷ 7.2 = ______

1

2

3

4

5

6

7

8

9

10

93.651 ÷ 9.3 = ______

17.6112 ÷ 2.4 = ______

165.645 ÷ 0.81 = ______

35.8918 ÷ 0.62 = ______

141.328 ÷ 0.44 = ______

___ ___ ‘s ___ ___ ___ ___ ___ ___ ___ ___!2 5 7 6 1 4 9 3 8 10

Riddle Answer

33

Why do frogs celebrateevery four years?

DIVIDING DECIMALS IN DIFFERENT PLACES

Riddle 29

20.45 . . . . . . N10.07 . . . . . . E12.16 . . . . . . P9.43 . . . . . . M7.338 . . . . . L

321.2 . . . . . . . R6.52 . . . . . . O3.875 . . . . . A

12.61 . . . . . . U4 . . . . . . . . . I

6.25 . . . . . . E9.34 . . . . . . T

57.89 . . . . . . Y5.789 . . . . . K

204.5 . . . . . . . A

NAME DATE

Decimals & Percents Practice Puzzles © Bob Hugel, Scholastic Teaching Resources

Page 34: Decimals & Percents Practice Puzzles

CONVERTING DECIMALS TO PERCENTS

Why did the tree thatwas in business growmore limbs?

What To DoConvert the decimals below to percents. Match each answer to a letter

in the Key. Then write the letter in the space above its problem number to find the answer to the riddle.

NAME DATE

Riddle 30

0.3 = ________

0.15 = ________

0.07 = ________

0.29 = ________

0.41 = ________

86.1% . . . . . . N7% . . . . . . . R6% . . . . . . C

12% . . . . . . . I30% . . . . . . A

37.5% . . . . . . O3% . . . . . . D

60% . . . . . . W1.2% . . . . . . . B97% . . . . . . . T

70% . . . . . . M375% . . . . . . . Y

15% . . . . . . H41% . . . . . . U29% . . . . . . O

1

2

3

4

5

6

7

8

9

10

0.06 = ________

0.97 = ________

0.375 = ________

0.861 = ________

0.012 = ________

34

It wanted t ___ ___ ___ ___ ___ ___ ___ ___ ___ ___.8 10 3 1 9 6 2 4 5 7

Riddle Answer

Decimals & Percents Practice Puzzles © Bob Hugel, Scholastic Teaching Resources

Page 35: Decimals & Percents Practice Puzzles

What To DoConvert the percents below into decimals. Match each answer to a letter

in the Key. Then write the letter in the space above its problem number to find the answer to the riddle.

A ___ ___ ___ ___ ___ ___ ___ ___ ___ ___4 7 10 9 2 3 6 5 8 1

Riddle Answer

35

Which vegetable listens well?

CONVERTING PERCENTS TO DECIMALS

Riddle 31

52% = ________

88% = ________

73% = ________

4% = ________

9% = ________

0.73 . . . . . . . F0.262 . . . . . . E1.15 . . . . . . . L0.4 . . . . . . . K0.999 . . . . . . R

0.88 . . . . . . O0.04 . . . . . . N38.7 . . . . . . . I0.115 . . . . . . C0.9 . . . . . . . B

0.4319 . . . . . A0.387 . . . . . . R7.3 . . . . . . . . F0.52 . . . . . . N0.09 . . . . . . O

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7

8

9

10

11.5% = ________

26.2% = ________

38.7% = ________

99.9% = ________

43.19% = ________

NAME DATE

Decimals & Percents Practice Puzzles © Bob Hugel, Scholastic Teaching Resources

Page 36: Decimals & Percents Practice Puzzles

CONVERTING FRACTIONS, DECIMALS, AND PERCENTS

Why didn’t anyone listen tothe balloon that bragged?

What To DoFill in the blanks with the equivalent fraction, decimal, or percent.

Match each answer to a letter in the Key. Then write the letter in the space above its problem number to find the answer to the riddle.

NAME DATE

Riddle 32

= 0.5 = _____

= _____ = 80%

_____ = 0.75 = 75%

= 0.875 = _____

_____ = 0.2 = 20%

0.1 . . . . . . . . L

1 . . . . . . . . . . T4/25 . . . . . . . . O

0.2 . . . . . . . . V

33.3% . . . . . . H

0.4 . . . . . . . . D

50% . . . . . . . F

0.8 . . . . . . . . L

875% . . . . . . G

69% . . . . . . . O

1/5 . . . . . . . . . I3/4 . . . . . . . . . A1/2 . . . . . . . . . G1/16 . . . . . . . . U

87.5% . . . . . . R

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10

= _____ = 10%

= 0.69 = _____

= _____ = 100%

_____ = 0.16 = 16%

= 0.333 = _____

36

It was fu ___ ___ ___ ___ ___ ___ ___ ___ ___ ___.2 6 7 1 10 9 8 3 5 4

Riddle Answer

1245

78

110

13

69100100100

Decimals & Percents Practice Puzzles © Bob Hugel, Scholastic Teaching Resources

Page 37: Decimals & Percents Practice Puzzles

37

“He ___ , ___ ___ ___ ___ ___ ___ ___ ___ ___!”3 10 1 7 2 6 8 4 9 5

Riddle Answer

What did the mouse say to his kids to get them to pose for a picture?

What To DoIn each problem, circle the decimal or percent that is greater. Match each

answer to a letter in the Key. Then write the letter in the space above its problemnumber to find the answer to the riddle.

COMPARING DECIMALS AND PERCENTS

Riddle 33

0.10 or 100%

0.4 or 30%

0.8 or 75%

0.62 or 5%

0.27 or 32%

100% . . . . . A0.44 . . . . . . . S20% . . . . . . H75% . . . . . . . P32% . . . . . . . E

82% . . . . . . . S0.8 . . . . . . . Y0.10 . . . . . . O0.62 . . . . . . . E30% . . . . . . N

0.19 . . . . . . . Y0.4 . . . . . . . C0.06 . . . . . . . E0.02 . . . . . . . T5% . . . . . . . W

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8

9

10

0.02 or 20%

0.19 or 17%

0.06 or 5%

0.44 or 39%

0.78 or 82%

NAME DATE

Decimals & Percents Practice Puzzles © Bob Hugel, Scholastic Teaching Resources

Page 38: Decimals & Percents Practice Puzzles

COMPARING PERCENTS AND FRACTIONS

What did the wind say before blowing out the candle?

What To DoIn each problem, circle the percent or fraction that is greater.

Match each answer to a letter in the Key. Then write the letter in the space above its problem number to find the answer to the riddle.

NAME DATE

Riddle 34

50% or

20% or

40% or

60% or

90% or

37% . . . . . . . T21% . . . . . . . S64% . . . . . . . A11/22 . . . . . . . S3/5 . . . . . . . . . O

50% . . . . . . . W6/20 . . . . . . . . D40% . . . . . . . T4/5 . . . . . . . . . H48% . . . . . . . P

3/4 . . . . . . . . . I7/7 . . . . . . . . . L15% . . . . . . . U60% . . . . . . . G4/10 . . . . . . . . K

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6

7

8

9

10

15% or

37% or

64% or

21% or

48% or

38

“It’ ___ ___ ___ ___ ___ ___ ___ ___ ___ ___!”10 5 1 4 8 7 9 2 6 3

Riddle Answer

34356

204

1077

111001450453

251122

Decimals & Percents Practice Puzzles © Bob Hugel, Scholastic Teaching Resources

Page 39: Decimals & Percents Practice Puzzles

The bed was ___ ___ ___ ___ – ___ ___ ___ ___!1 8 4 3 2 6 7 5

Riddle Answer:

39

Why did the cat sleep so well in his new bed?

What To DoAnswer the questions below. Match each answer to a letter in the Key. Then write the

letter in the space above its problem number to find the answer to the riddle.

VISUALIZING PERCENTS

Riddle 35

NAME DATE

45% . . . . . C40% . . . . . B50% . . . . . P32% . . . . . U5% . . . . . . X20% . . . . . R3% . . . . . . F4% . . . . . . C25% . . . . . T30% . . . . . R10% . . . . . F15% . . . . . E

What percent of these shapes is a square? _______

What percent of these shapes are squares? _______

What percent of these shapes are triangles? _______

What percent of these shapes are circles? _______

What percent of these shapes are stars? _______

What percent of these circles are shaded? _______

What percent of these squares are NOT shaded? _______

What percent of these shapes are stars AND triangles? ____

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Decimals & Percents Practice Puzzles © Bob Hugel, Scholastic Teaching Resources

Page 40: Decimals & Percents Practice Puzzles

FINDING 10 PERCENT OF A NUMBER

Why was the backhoe so good at finding things?

What To DoSolve the percent problems below. Match each answer to a letter

in the Key. Then write the letter in the space above its problem number to find the answer to the riddle.

NAME DATE

Riddle 36

10% of 100 = ______

10% of 10 = ______

10% of 20 = ______

10% of 50 = ______

10% of 30 = ______

2 . . . . . . . . . . D900 . . . . . . . . . . E10 . . . . . . . . . . N0.2 . . . . . . . . . . A0.3 . . . . . . . . . . O

20 . . . . . . . . . . E4 . . . . . . . . . . M

30 . . . . . . . . . . F65 . . . . . . . . . . U40 . . . . . . . . . . U

32 . . . . . . . . . . T1 . . . . . . . . . . N

90 . . . . . . . . . . B3 . . . . . . . . . . R5 . . . . . . . . . . N

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8

9

10

10% of 650 = ______

10% of 320 = ______

10% of 200 = ______

10% of 400 = ______

10% of 9,000 = ______

40

It left no sto ___ ___ ___ ___ ___ ___ ___ ___ ___ ___.1 8 6 4 7 9 5 2 10 3

Riddle Answer

Decimals & Percents Practice Puzzles © Bob Hugel, Scholastic Teaching Resources

Page 41: Decimals & Percents Practice Puzzles

It wa ___ ___ ___ ___ ___ ___ ___ ___ ___ ___.5 10 6 1 9 3 4 7 8 2

Riddle Answer

41

Why was the piece of clothing so hard to find?

What To DoSolve the percent problems below. Match each answer to a letter in the Key. Then write the letter in the space above its problem

number to find the answer to the riddle.

FINDING PERCENT OF A MONEY AMOUNT

Riddle 37

20% of $86 = _____

15% of $64 = _____

7% of $49 = _____

31% of $75 = _____

3% of $12 = _____

$17.50 . . . . . . V$3.43 . . . . . . R$9.60 . . . . . . R$3.60 . . . . . . P

$47.56 . . . . . . U

$0.36 . . . . . . S$9.50 . . . . . . E

$17.20 . . . . . . D$34.30 . . . . . . G$23.75 . . . . . . O

$6.60 . . . . . . A$2.10 . . . . . . N

$24.75 . . . . . . E$3.25 . . . . . . L

$23.25 . . . . . . W

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7

8

9

10

42% of $5 = _____

19% of $50 = _____

60% of $11 = _____

75% of $33 = _____

58% of $82 = _____

NAME DATE

Decimals & Percents Practice Puzzles © Bob Hugel, Scholastic Teaching Resources

Page 42: Decimals & Percents Practice Puzzles

SOLVING WORD PROBLEMS: MONEY

What did the cat saywhen she stepped ona sharp rock?

What To DoSolve the word problems below. Match each answer to a letter in the Key. Then write

the letter in the space above its problem number to find the answer to the riddle.

NAME DATE

Riddle 38

42

“Me- ___ ___ ! ___ ___ ___ ___ ___ ___ ___ ___!”8 5 2 4 3 9 10 6 7 1

$1.50 . . . . I$3.40 . . . W

$10.60 . . . . A$14.11 . . . . H$15.25 . . . . F$63.59 . . . . R

70¢ . . . U$10.50 . . . G$14.70 . . . O

$3.50 . . . D$15.75 . . . . T

$6.20 . . . . E$2.00 . . . . H$8.20 . . . . T$2.50 . . . . T

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10

Riddle Answer

Dana has two $1 bills and 50¢ in coins. How much money doesshe have? ____________________

Julio has one $5 bill, three $1 bills, and 20¢ in coins. How muchmoney does he have? ____________________

Hannah has $4.50. Max has $6.10. How much money do theyhave together? ____________________

Sarita has $1.25. She finds 75¢ on the sidewalk. How much moneydoes she have now? ____________________

Donovan has $9.40. Lilly has $6.00. How much more money doesDonovan have than Lilly? ____________________

Olivia has $5.00. Emma has $4.30. How much more money doesOlivia have than Emma? ____________________

Tony has $11.17. Chris has $20.34. John has $32.08. How muchmoney do they all have together? ____________________

Leah has $7.35. Then she doubles the amount of money she has.How much money does she have now? ____________________

José has three times more money than Bob. Bob has $5.25 cents.How much money does José have? ____________________

Brian has half the amount of money Russell has. Russell has$28.22. How much money does Brian have? ____________________

Decimals & Percents Practice Puzzles © Bob Hugel, Scholastic Teaching Resources

Page 43: Decimals & Percents Practice Puzzles

“Le ___ ‘ ___ ___ ___ ___ ___ ___ ___ ___ ___!”7 4 10 8 2 3 6 5 1 9

Riddle Answer

43

What did the left foot say to the right foot?

What To DoSolve the word problems below. Match each answer to a letter in the Key. Then write

the letter in the space above its problem number to find the answer to the riddle.

SOLVING WORD PROBLEMS: MEASUREMENT

Riddle 39

NAME DATE

5.5 pounds . . . . . . . . . O

102.75 pounds . . . . . . S

16% . . . . . . . . . . . . . . M

22.4 feet . . . . . . . . . . P

Matt and Carlos . . . . . S

10 feet, 2 inches . . . . E

20 floors . . . . . . . . . . . A

24.7 pounds . . . . . . . . ITomas and Oliver . . . . L

206.25 pounds . . . . . . T

21 floors . . . . . . . . . . . T

1 foot, 1 inch taller . . . N

2 feet, 1 inch taller . . . R

22 percent . . . . . . . . . T

137.5 pounds . . . . . . . Q

Steve weighs 175 pounds. Charlie weighs 150.3 pounds. How muchmore does Steve weigh than Charlie? _______________

Carla is 5 feet, 6 inches tall. Taiyo is 4 feet, 8 inches tall. What is theircombined height? _______________

Wendell hits a baseball 44.8 feet. Larry hits a baseball half as far asWendell does. How far does Larry hit a baseball? ____________

Nick weighs 85.5 pounds. He gains 17.25 pounds over the next 2years. How much does he weigh after 2 years? _______________

Keisha is 6 feet tall. Jane is 6 feet, 2 inches tall. Francine is 4 feet, 11inches tall. How much taller is Keisha than Francine? _________

Viktor’s dog weighs 6 times more than Christina’s cat. Viktor’s dogweighs 33 pounds. How much does Christina’s cat weigh? _______

Becky weighs 68.75 pounds. Kendra weighs twice as much as Becky.What is their combined weight? _______________

Building A has 84 floors. Building B has 25 percent the number offloors Building A has. How many floors does Building B have? ______

A neighborhood has 100 homes. Four months later, it has 122homes. By what percentage did the number of homes in the neighborhood grow? _______________

Tomas weighs 108.5 pounds. Matt weighs 123 pounds. Carlosweighs 97.75 pounds. Oliver weighs 112.5 pounds. Who weighs less:Tomas and Oliver or Matt and Carlos? _______________

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Decimals & Percents Practice Puzzles © Bob Hugel, Scholastic Teaching Resources

Page 44: Decimals & Percents Practice Puzzles

SOLVING WORD PROBLEMS: TIME

What did the shiveringbarn do to get warm?

What To DoSolve the word problems below. Match each answer to a letter in the Key. Then write

the letter in the space above its problem number to find the answer to the riddle.

NAME DATE

Riddle 40

44

Put on a c ___ ___ ___ of ___ ___ ___ ___ ___4 5 2 1 3 8 6 7

Riddle Answer

14.7 seconds . . . . . . . I

Sam . . . . . . . . . . . . . . C

25 minutes, 16.7 seconds . . . . . . . T

50.3 seconds . . . . . . . N

Frank . . . . . . . . . . . . . A

4.5 hours . . . . . . . . . . T

13 minutes, 9 seconds . . . . . . . . . S

6 seconds . . . . . . . . . D

8 minutes, 44 seconds . . . . . . . . O

0.6 seconds . . . . . . . . P

1.5 hours . . . . . . . . . . U

1 hour, 18 minutes . . . . . . . . A

Miguel finished a 100-meter race in 11.2 seconds. Peter finished in 11.8 seconds. How much faster was Miguel’s timethan Peter’s? __________

Carol completed a test 12.4 seconds after Laura did. Lauracompleted the test in 25 minutes, 4.3 seconds. How long didit take Carol to complete the test? __________

Frank tied his shoes in 6.353 seconds. Sam tied his shoes in6.062 seconds. Who took longer? __________

Mel ran around the block in 4 minutes, 22 seconds. Raquel tooktwice as long as Mel. How long did it take Raquel? ________

Ben watches TV for half the time Tam does. Tam watches for 2hours, 36 minutes. How long does Ben watch for? ________

Ian, Jim, Wendy, and David ran a 400-meter relay race. Ian ran 100 meters in 13.2 seconds. Jim ran it in 11.9 seconds,Wendy in 12.5 seconds, and David in 12.7 seconds. What was their combined time? __________

Cliff hiked up a mountain in 6 hours. Leo took a short cut andfinished in 25% less time than Cliff. How long did it take Leoto hike up the mountain? __________

Marta, Ichiro, Henry, and Dani ran a 400-meter relay race in 58.8seconds. Each runner took the same amount of time to run 100meters. How fast did each runner run? __________

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Decimals & Percents Practice Puzzles © Bob Hugel, Scholastic Teaching Resources

Page 45: Decimals & Percents Practice Puzzles

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Riddle 1 (page 5)1. 52. 03. 64. 75. 26. 87. 48. 19. 3

10. 9What do you call a tree root with four equal sides? A square root

Riddle 2 (page 6)1. 22. 53. 84. 45. 16. 107. 128. 99. 20

10. 14Why did the farmer want the tree, instead of his dog, to guard his sheep?The tree had more bark.

Riddle 3 (page 7)1. 2.42. 6.83. 5.14. 10.85. 1.96. 17.27. 25.58. 8.39. 30.1

10. 12.7What did the blanket say to the bed? “I’ve got you covered.”

Riddle 4 (page 8)1. 5.262. 7.853. 10.634. 8.475. 3.996. 2.167. 15.788. 1.379. 20.55

10. 9.12Why did the Earth make the sun dizzy? It went around in circles.

Riddle 5 (page 9)1. 6.22. 3.13. 4.484. 7.635. 9.086. 15.47. 5.6588. 20.839. 32.461

10. 75.1What did the bee say before eating its favorite meal? ”Thanks, honey!”

Riddle 6 (page 10)1. 0.12. 0.53. 0.74. 0.185. 0.256. 0.017. 0.68. 0.999. 0.463

10. 0.003How can the pots tell when the kettle is mad? It blows off steam.

Riddle 7 (page 11)1. 0.42. 0.253. 0.54. 0.1255. 0.76. 0.27. 0.068. 0.5259. 0.75

10. 0.03What did the rabbit say to get the other rabbits moving? ”Let’s hop to it!”

Riddle 8 (page 12)1. 1/102. 3/103. 1/24. 4/55. 1/56. 3/57. 1/48. 37/1009. 23/50

10. 3/25What did the cow say to the tractor that was blocking its path?“Please moo-ve.”

Riddle 9 (page 13)1. 5.12. 4.73. 26.54. 12.455. 35.166. 67.087. 95.488. 17.0319. 59.675

10. 186.005Why did the window succeed in business? It was always open.

Answers

Decimals & Percents Practice Puzzles © Bob Hugel, Scholastic Teaching Resources

Page 46: Decimals & Percents Practice Puzzles

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Riddle 10 (page 14)1. 4.52. 1.753. 5.84. 2.35. 10.256. 8.8757. 12.6258. 3.759. 6.5

10. 20.4What is a dog’s favorite type of clothing? A pair of pants

Riddle 11 (page 15)1. 0.582. 3/43. 6/104. 9/205. 0.936. 14/567. 7/88. 15/409. 1/10

10. 0.536Why was the tired criminal glad when the cops came?He was now under ar-rest.

Riddle 12 (page 16)1. 1.52. 4.63. 8.914. 5.835. 0.296. 0.477. 7.1248. 9.6589. 83.065

10. 10.003Why did the phone stop callingthe answering machine? It never returned messages.

Riddle 13 (page 17)1. 4.42. 8.73. 13.54. 13.35. 11.16. 18.257. 16.678. 23.939. 28.542

10. 41.816Why was the bird afraid to fly?It was a scared-crow.

Riddle 14 (page 18)1. 0.72. 13. 1.14. 0.85. 1.26. 18.87. 17.48. 13.49. 36.1

10. 42.3Why did the salad feel naked?It didn’t have any dressing.

Riddle 15 (page 19)1. 0.672. 0.73. 9.94. 12.875. 18.266. 0.6777. 1.8748. 17.4049. 28.165

10. 31.998Which planet won the singing contest? It was Nep-tune.

Riddle 16 (page 20)1. 3.632. 0.7063. 15.884. 0.5995. 1.9276. 32.8127. 15.0968. 109.8749. 93.742

10. 53.348

Why was the hockey player always in trouble? He skated on thin ice.

Riddle 17 (page 21)1. 142. 43. 74. 155. 186. 37. 98. 119. 44

10. 209Why is it hard to listen to a circle speak? It never gets to the point.

Riddle 18 (page 22)1. 0.12. 0.43. 0.24. 0.55. 0.76. 37. 4.78. 0.89. 1.8

10. 5.6What did the shovel say to the sick bucket? “You look pail!”

Riddle 19 (page 23)1. 1.52. 2.33. 1.74. 4.45. 7.66. 2.97. 4.38. 9.19. 0.8

10. 11.2Why did the horse keep stopping? It was a stall-ion.

Decimals & Percents Practice Puzzles © Bob Hugel, Scholastic Teaching Resources

Page 47: Decimals & Percents Practice Puzzles

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Riddle 20 (page 24)1. 4.52. 3.83. 1.74. 3.65. 2.96. 12.27. 22.48. 47.39. 4.1

10. 46.7Why was the shirt sad?Because it was blue.

Riddle 21 (page 25)1. 0.222. 0.13. 0.524. 0.0325. 0.8146. 3.247. 15.088. 2.399. 10.362

10. 0.345What do boxers do before going to bed? They have a pillow fight.

Riddle 22 (page 26)1. 6.442. 15.063. 4.314. 9.425. 5.4546. 33.9387. 8.7768. 17.219. 11.269

10. 4.278Why did the father keep giving his children candy? He was a lolli-pop.

Riddle 23 (page 27)1. 0.22. 43. 4.24. 485. 72.16. 197. 37.88. 18.9

9. 5110. 73.8Why didn’t anyone trust the lamp? It was shady.

Riddle 24 (page 28)1. 32.152. 11.83. 30.484. 93.65. 97.66. 56.77. 114.888. 230.129. 210

10. 357What fruit is round, red, and always puts its best foot forward? A red toma-toe

Riddle 25 (page 29)1. 0.252. 0.323. 0.144. 0.575. 1.986. 3.927. 5.258. 17.25589. 41.2296

10. 43.3026What did the dog say to the otherdog before sharing his food?“Bone appetit!”

Riddle 26 (page 30)1. 0.3652. 0.0643. 0.17014. 0.89245. 11.02766. 1.21917. 5.2058. 37.162959. 30.03616

10. 9.56672Why did the truck quit working at the construction site? It was tired of being dumped on.

Riddle 27 (page 31)1. 102. 83. 154. 205. 256. 167. 508. 129. 65

10. 30Why was the fish asked to tell jokes? It was a clown fish.

Riddle 28 (page 32)1. 0.22. 2.53. 4.754. 45. 6.1256. 677. 58. 9.59. 3.4

10. 6.5What did the elephant say about the flies? “They really bug me!”

Riddle 29 (page 33)1. 3.8752. 43. 6.254. 12.165. 9.346. 10.077. 7.3388. 204.59. 57.89

10. 321.2Why do frogs celebrate every four years? It’s leap year!

Riddle 30 (page 34)1. 30%2. 15%3. 7%4. 29%5. 41%6. 6%7. 97%8. 37.5%

Decimals & Percents Practice Puzzles © Bob Hugel, Scholastic Teaching Resources

Page 48: Decimals & Percents Practice Puzzles

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9. 86.1%10. 1.2%Why did the tree that was in business grow more limbs? It wanted to branch out.

Riddle 31 (page 35)1. 0.522. 0.883. 0.734. 0.045. 0.096. 0.1157. 0.2628. 0.3879. 0.999

10. 0.4319Which vegetable listens well?An ear of corn

Riddle 32 (page 36)1. 50%2. 0.83. 3/44. 87.5%5. 1/56. 0.17. 69%8. 19. 4/25

10. 33.3%Why didn’t anyone listen to the balloon that bragged?It was full of hot air.

Riddle 33 (page 37)1. 100%2. 0.43. 0.84. 0.625. 32%6. 20%7. 0.198. 0.069. 0.44

10. 82%What did the mouse say to his kids to get them to pose for a picture?“Hey, say cheese!”

Riddle 34 (page 38)1. 3/42. 3/53. 40%4. 60%5. 7/76. 15%7. 37%8. 4/59. 21%

10. 11/22What did the wind say beforeblowing out the candle? “It’s lights out!”

Riddle 35 (page 39)1. 50%2. 10%3. 20%4. 30%5. 25%6. 15%7. 45%8. 32%

Why did the cat sleep so well in his new bed? The bed was purr-fect!

Riddle 36 (page 40)1. 102. 13. 24. 55. 36. 657. 328. 209. 40

10. 900Why was the backhoe so good at finding things? It left no stone unturned.

Riddle 37 (page 41)1. $17.202. $9.603. $3.434. $23.255. $0.366. $2.107. $9.508. $6.609. $24.75

10. $47.56

Why was the piece of clothing so hard to find? It was under wear.

Riddle 38 (page 42)1. $2.502. $8.203. $10.604. $2.005. $3.406. 70¢7. $63.598. $14.709. $15.75

10. $14.11What did the cat say when shestepped on a sharp rock?“Me-ow! That hurt!”

Riddle 39 (page 43)1. 24.7 pounds2. 10 feet, 2 inches3. 22.4 feet4. 102.75 pounds5. 1 foot, 1 inch taller6. 5.5 pounds7. 206.25 pounds8. 21 floors9. 22 percent

10. Matt and CarlosWhat did the left foot say to the right foot?“Let’s step on it!”

Riddle 40 (page 44)1. 0.6 seconds2. 25 minutes, 16.7 seconds3. Frank4. 8 minutes, 44 seconds5. 1 hour, 18 minutes6. 50.3 seconds7. 4.5 hours8. 14.7 seconds

What did the shivering barn do to get warm? Put on a coat of paint

Decimals & Percents Practice Puzzles © Bob Hugel, Scholastic Teaching Resources