0 439 40917 9 New York • Toronto • London • Auckland • Sydney • Mexico City New Delhi • Hong Kong • Buenos Aires 5 Minute Daily Practice BY JILL SAFRO 5 Minute Daily Practice Fractions Decimals © Ji.
5-Minute Daily Practice BY JILL SAFRO New York • Toronto • London • Auckland • Sydney • Mexico City New Delhi • Hong K ong • Buenos Aires 5-Minute Daily Practice: Fractions & Decimals © Jill Safro, Scholastic Teaching Resources For Judy and Joan—fifth-grade math buddies and lifelong friends Scholastic Inc grants teachers permission to photocopy the reproducible activity sheets in 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 Cover art by Interior design by Interior illustrations by Gerard Fuchs Dave Clegg Holly Grundon Mike Moran ISBN: 0-439-40917-9 Copyright © 2003 by Jill Safro All rights reserved Published by Scholastic Inc Printed in the U.S.A 10 40 09 08 07 06 05 04 03 5-Minute Daily Practice: Fractions & Decimals © Jill Safro, Scholastic Teaching Resources Co ntents Introduction Fractions Decimals Fraction Terms Place Value 34 Identifying Fractions Ordering Decimals 37 Simplifying Fractions 14 Decimal/Fraction Equivalents 38 Equivalent Fractions 18 Rounding Decimals 40 Comparing Fractions 21 Adding Decimals 44 Ordering Fractions 23 Subtracting Decimals 46 Adding Fractions 24 Mixed Operations 48 Subtracting Fractions 26 Multiplying Decimals 49 Multiplying Fractions 28 Dividing Decimals 55 Dividing Fractions 31 Mixed Operations 59 Fraction/Decimal Equivalents 32 Money Math 61 Answers 63 5-Minute Daily Practice: Fractions & Decimals © Jill Safro, Scholastic Teaching Resources I n t ro d uc t io n T here are 180 problems inside this book and 180 days in the average school year Coincidence? Not in the least These specially written problems of the day—an eclectic mix of computation, problem solving, brainteasers, and fascinating facts—will help hone students’ fraction and decimal skills all school-year long How to Use This Book We’ve created the “quick and clever” problems inside this book Now it’s up to you to get them to your students You may want to copy each page, cut apart the activities, and hand one to your students each day You may also want to copy them onto the blackboard, or make an overhead transparency of each page Each problem (or set of problems) should take the average student about five minutes to complete Some students may take a bit longer, while others may drop their pencils even before you finish explaining the problem No matter Just keep in mind that this book was crafted with the following goals in mind: ● To reinforce skills and foster a deeper appreciation of the wonders of fractions and decimals ● To engage all students with entertaining, age-appropriate material ● To make solid connections with the content standards developed by the National Council of Teachers of Math (NCTM) 5-Minute Daily Practice: Fractions & Decimals © Jill Safro, Scholastic Teaching Resources F r a ct i on s Fraction Terms Name: Which fraction has a numerator of 3? _ 3 _ 33 _ 100 Fraction Terms Name: Which fraction has a denominator of 10? 10 _ 7 _ 10 10 _ 100 Fraction Terms Name: Which fraction is proper? 22 _ 33 33 _ 22 _ Fraction Terms Name: Which fraction is improper? _ _ 10 _ 5-Minute Daily Practice: Fractions & Decimals © Jill Safro, Scholastic Teaching Resources F r a ct i on s Fraction Terms Name: Which improper fraction has a numerator of 9? 12 _ 9 _ 14 _ Fraction Terms Name: Which proper fraction has a denominator of 5? _ 5 _ 10 _ Fraction Terms Name: Which of these is a mixed number? _ _ _ 33 5-Minute Daily Practice: Fractions & Decimals © Jill Safro, Scholastic Teaching Resources F r a ct i on s Fraction Terms Name: Which mixed number is equal to 6/5? _ 1 _ _ Fraction Terms Name: Circle the correct letter A mixed number is made up of a) one whole number b) one fraction c) two whole numbers d) a whole number and a fraction Fraction Terms Name: 10 Which of these are like fractions? _ 7 _ 7 _ _ 8 _ 5-Minute Daily Practice: Fractions & Decimals © Jill Safro, Scholastic Teaching Resources F r a ct i on s Fraction Terms Name: 11 Which of these are like fractions? _ 3 _ _ 3 _ 10 _ Fraction Terms Name: 12 What is the reciprocal of 22/44? _ 44 _ 22 _ Fraction Terms Name: 13 What is the reciprocal of 4/5? _ 8 _ 10 _ 5-Minute Daily Practice: Fractions & Decimals © Jill Safro, Scholastic Teaching Resources F r a ct i on s Identifying Fractions Name: 14 What fraction of a year is one week? Identifying Fractions Name: 15 If 1/2 of your class has to stay after school, what fraction gets to go home? Identifying Fractions Name: 16 In baseball, what fraction of the bases is home plate? 5-Minute Daily Practice: Fractions & Decimals © Jill Safro, Scholastic Teaching Resources F r a ct i on s Identifying Fractions Name: 17 Clumsy Carl crushed 10/12 of his crackers What fraction of his crackers weren’t crushed? Identifying Fractions Name: 18 What fraction of the shapes are squares? _ 4 _ _ Identifying Fractions Name: 19 What fraction of the United States were original colonies? 10 5-Minute Daily Practice: Fractions & Decimals © Jill Safro, Scholastic Teaching Resources D e c im a ls Multiplying Decimals Name: 140 What number am I? I am an odd number I am the number of Major League Baseball teams named after birds I am the product of times 0.5 Multiplying Decimals Name: 141 Solve the equation If the product is a decimal, the statement is true If the product is a whole number, the statement is false A group of parrots is called a company True or false? 64 x 0.06 = Multiplying Decimals Name: 142 You be the teacher! Which of these is NOT correct? a) 0.5 x 0.6 = 0.03 b) 0.5 x 0.06 = 0.03 c) 0.05 x 0.6 = 0.03 50 5-Minute Daily Practice: Fractions & Decimals © Jill Safro, Scholastic Teaching Resources D e c im a ls Multiplying Decimals Name: 143 What number am I? I am a decimal I am the weight in pounds of a million one-dollar bills I am the product of 510.2 times Multiplying Decimals Name: 144 You be the teacher! Which of these is NOT correct? a) 0.1 x 0.1 = 0.01 b) 0.01 x 0.1 = 0.001 c) 0.01 x 0.01 = 0.00001 Multiplying Decimals Name: 145 Solve the equation If the product is a decimal, the statement is true If the product is a whole number, the statement is false A group of monsters is called a cookie True or false? 30 x 0.6 = 5-Minute Daily Practice: Fractions & Decimals © Jill Safro, Scholastic Teaching Resources 51 D e c im a ls Multiplying Decimals Name: 146 What number am I? I am an even number I am the highest temperature (in degrees Fahrenheit) ever recorded in the United States I am the product of 536 times 0.25 Multiplying Decimals Name: 147 You be the teacher! Which of these is NOT correct? a) 0.123 x = 0.123 b) 1.23 x 0.1 = 1.23 c) 1.23 x 0.01 = 0.0123 Multiplying Decimals Name: 148 Solve the equation If the product is a decimal, the statement is true If the product is a whole number, the statement is false A group of worms is called a mystery True or false? 160 x 0.05 = 52 5-Minute Daily Practice: Fractions & Decimals © Jill Safro, Scholastic Teaching Resources D e c im a ls Multiplying Decimals Name: 149 What number am I? I am an even number I am the number of times your heart beats in a day I am the product of 250,000 times 0.4 Multiplying Decimals Name: 150 Solve the equation If the product is a decimal, the statement is true If the product is a whole number, the statement is false A group of goats is called a trip True or false? 12 x 0.7 = Multiplying Decimals Name: 151 Solve the equation If the product is a decimal, the statement is true If the product is a whole number, the statement is false A group of toads is called a knot True or false? 149 x 0.08 = 5-Minute Daily Practice: Fractions & Decimals © Jill Safro, Scholastic Teaching Resources 53 D e c im a ls Multiplying Decimals Name: 152 Solve the equation If the product is a decimal, the statement is true If the product is a whole number, the statement is false A group of turtles is called a bale True or false? x 0.25 = Multiplying Decimals Name: 153 Solve the equation If the product is a decimal, the statement is true If the product is a whole number, the statement is false A group of flies is called a swatter True or false? 100 x 0.01 = Multiplying Decimals Name: 154 Solve the equation If the product is a decimal, the statement is true If the product is a whole number, the statement is false A group of skunks is called a stink True or false? 1,500 x 0.25 = 54 5-Minute Daily Practice: Fractions & Decimals © Jill Safro, Scholastic Teaching Resources D e c im a ls Multiplying Decimals Name: 155 Solve the equation If the product is a decimal, the statement is true If the product is a whole number, the statement is false A group of ponies is called a string True or false? x 0.99 = Dividing Decimals Name: 156 What number am I? I am an odd number I am the number of known moons orbiting Saturn I am the quotient of 28.5 divided by 1.5 Dividing Decimals Name: 157 What number am I? I am an even number I am the number of known rings around Neptune I am the quotient of 12.8 divided by 3.2 5-Minute Daily Practice: Fractions & Decimals © Jill Safro, Scholastic Teaching Resources 55 D e c im a ls Dividing Decimals Name: 158 You be the teacher! Which of these is NOT correct? a) 10 ÷ 0.2 = b) 10 ÷ 0.02 = 500 c) 10 ÷ 0.002 = 5,000 Dividing Decimals Name: 159 Solve the equation If the quotient is a decimal, the statement is true If the quotient is a whole number, the statement is false Elephants can’t jump True or false? 8.6 ÷ = Dividing Decimals Name: 160 Solve the equation If the quotient is a decimal, the statement is true If the quotient is a whole number, the statement is false Butterflies taste with their feet True or false? 1.86 ÷ = 56 5-Minute Daily Practice: Fractions & Decimals © Jill Safro, Scholastic Teaching Resources D e c im a ls Dividing Decimals Name: 161 Solve the equation If the quotient is a decimal, the statement is true If the quotient is a whole number, the statement is false Jellyfish have no bones True or false? 13 ÷ 1.6 = Dividing Decimals Name: 162 Solve the equation If the quotient is a decimal, the statement is true If the quotient is a whole number, the statement is false An ostrich’s eye is bigger than its brain True or false? 0.016 ÷ 0.4 = Dividing Decimals Name: 163 Solve the equation If the quotient is a decimal, the statement is true If the quotient is a whole number, the statement is false Tigers have striped skin True or false? 0.1 ÷ 0.2 = 5-Minute Daily Practice: Fractions & Decimals © Jill Safro, Scholastic Teaching Resources 57 D e c im a ls Dividing Decimals Name: 164 Solve the equation If the quotient is a decimal, the statement is true If the quotient is a whole number, the statement is false Crickets are common pets in Japan True or false? 0.03 ÷ 0.02 = Dividing Decimals Name: 165 Solve the equation If the quotient is a decimal, the statement is true If the quotient is a whole number, the statement is false A cockroach can live for a week without a head True or false? 0.24 ÷ = Dividing Decimals Name: 166 Solve the equation If the quotient is a decimal, the statement is true If the quotient is a whole number, the statement is false Zebras never sleep True or false? 10 ÷ 0.05 = 58 5-Minute Daily Practice: Fractions & Decimals © Jill Safro, Scholastic Teaching Resources D e c im a ls Dividing Decimals Name: 167 Solve the equation If the quotient is a decimal, the statement is true If the quotient is a whole number, the statement is false An albatross can sleep while it flies True or false? 0.55 ÷ 0.5 = Mixed Operations Name: 168 You be the teacher! Which of these equations is NOT correct? a) (1.25 – 0.25) x 0.25 = 0.25 b) (25 + 0.25) ÷ 0.5 = 0.25 c) 25 x 0.5 ÷ 0.5 = 25 Mixed Operations Name: 169 You be the teacher! Which of these equations is NOT correct? a) (0.2662 – 0.062) x 100 = 204.2 b) (0.009 + 0.001) x 1,000 = 10 c) 1.1 ÷ 1.1 x 0.07 = 0.07 5-Minute Daily Practice: Fractions & Decimals © Jill Safro, Scholastic Teaching Resources 59 D e c im a ls Mixed Operations Name: 170 You be the teacher! Which of these is NOT correct? a) 0.25 x + 0.2 = 9.5 b) 0.25 x 0.3 + = 2.075 c) 0.25 x + = 3.5 Mixed Operations Name: 171 You be the teacher! Which of these is NOT correct? a) 0.22 x 2.5 ÷ = 0.55 b) 0.22 x 2.5 ÷ 0.1 = 5.5 c) 0.22 x 0.25 ÷ 0.1 = 5.5 Mixed Operations Name: 172 You be the teacher! Which of these is NOT correct? a) 0.09 x ÷ = 0.06 b) 0.9 x ÷ = 0.06 c) 0.9 x 0.6 ÷ = 0.06 60 5-Minute Daily Practice: Fractions & Decimals © Jill Safro, Scholastic Teaching Resources D e c im a ls Money Math Name: 173 Franny the football fanatic bought 50 Giants jerseys If each jersey cost $135.57, how much did Franny spend for all 50? Money Math Name: 174 Harold brought $5.24 to the jelly bean store He spent half his cash on liver-flavored jelly beans (His cat loves them!) How much money did he spend? Money Math Name: 175 Kirby’s cat had kittens If he sells each one for the same price, he’ll make a total of $4.74 How much does one of Kirby’s kittens cost? Money Math Name: 176 Which would you rather have? Why? weekly installments of $525 or 52.5 weekly installments of $300 5-Minute Daily Practice: Fractions & Decimals © Jill Safro, Scholastic Teaching Resources 61 D e c im a ls Money Math Name: 177 If Lola sells lemonade for $15.08 a gallon, how much money does she make for each quart? (Hint: There are quarts in one gallon.) Money Math Name: 178 Kirby ate 1/3 of the cookies he made for the big bake sale If he ate 12 cookies, how many does he have left? How much will he make if he sells each cookie for $.15 each? Money Math Name: 179 Phineas found a $20 bill! How many pieces of candy will that get him at the penny candy store? Name: Money Math 180 Irving has 1/4 of $3,660 Bertha has 1/5 of $5,995 Who’s richer? 62 5-Minute Daily Practice: Fractions & Decimals © Jill Safro, Scholastic Teaching Resources Answers 3/4 33 1/3 66 1/2; 3/4 7/10 34 1/5 67 1; 3 22/33 35 1/6 68 1/3, True 8/5 36 1/2 69 1/8; 1/2 9/3 37 1/4 70 1/7; 7/15 3/5 38 1/2 71 0; 1/6 1/3 39 1/4 72 0; 8/21 1/5 40 1/4 73 3/5, True d 41 3/13 74 3/32; 10 5/7, 7/7, 8/7 42 8; 3/4; 4/5 75 1; 3/40 11 2/3, 1/3, 10/3 43 c 76 3/4, True 12 44/22 44 True 77 1/2, True 13 5/4 45 True 78 1, False 14 1/52 46 False 79 20; 2/7 15 1/2 47 True 80 4, False 16 1/4 48 False 81 1, False 17 2/12 or 1/6 49 False 82 2/9, True 18 4/4 50 True 83 1/2, True 19 13/50 51 True 84 2/3, True 20 3/5 52 True 85 2/3, True 21 1/3 53 True 86 4; 13/16 22 1/3 54 ; > 88 0.2; 0.08 24 4/10 or 2/5 56 >; < 89 True; False; True 25 1/5 57