Decimals & Percents Practice Puzzles
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Transcript of 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
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
Decimals & Percents Practice Puzzles © Bob Hugel, Scholastic Teaching Resources
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
4
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
5
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
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
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
9
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
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
11
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
12
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
13
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
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
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
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
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
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
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
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
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
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
___ ___ 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
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
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
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
___ ___ ___ ___ ___ ___ ___ ___ ___ ___.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
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
“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
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
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
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
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
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
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
1
2
3
4
5
6
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
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
1
2
3
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8
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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
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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3
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5
6
7
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
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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2
3
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5
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
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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8
Decimals & Percents Practice Puzzles © Bob Hugel, Scholastic Teaching Resources
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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2
3
4
5
6
7
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
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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5
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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
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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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
“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
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
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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
46
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
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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
48
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