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Ten is a special numberWhat makes ten?Finding facts of tenGlossary
Marcia S. Freeman A Book About Number Facts www.rourkepublishing.com © 2008 Rourke Publishing LLC All rights reserved. No part of this book may be reproduced or utilized in any form or by any means, electronic or mechanical including photocopying, recording, or by any information storage and retrieval system without permission in writing from the publisher. www.rourkepublishing.com PHOTO CREDITS: title page © Nancy Catherine; pg.5 © Dan Bayley; pg.6 © Mike Morley; pg.11 © Christine Glade; pg.12 © YinYang; pg.13 © Mark Yuill; pg.14 © Ian Peters; pg.15 © Eric Lsselee; pg.17 © Mecaleha; pg.22 © Paul Kline Editor: Robert Stengard-Olliges Cover design by Nicola Stratford, bdpublishing.com Library of Congress Cataloging-in-Publication Data Freeman, Marcia S. (Marcia Sheehan), 1937- What makes ten? : number facts / Marcia S. Freeman. p. cm. -- (Math focal points) Includes index. ISBN 978-1-60044-642-9 (Hardcover) ISBN 978-1-60044-686-3 (Softcover) 1. Counting--Juvenile literature. 2. Ten (The number)--Juvenile literature. I. Title. QA113.F749 2008 513.2'11--dc22 2007018021 Printed in the USA CG/CG www.rourkepublishing.com - rourke@rourkepublishing.com Post Office Box 643328 Vero Beach, Florida 32964 Table of Contents Ten Is a Special Number 4 What Makes Ten? 10 Finding Facts of Ten 18 Glossary 23 Index 24 4 A long time ago, people found their fingers were useful in counting. Count your fingers. Do you see why ten is an important number? Ten Is a Special Number 5 6 We use ten different symbols to write numbers. The symbols are 0, 1, 2, 3, 4, 5, 6, 7, 8, and 9. But there is no separate symbol for ten. 7 We write the number ten with a one in the ten’s place and a zero in the one’s place. Like this .10. 10 ten’s one’s 1 0 or Ten is important in our money system, too. Ten pennies make a dime. Ten dimes make a dollar. 8 1 ¢ 1 ¢ 1 ¢ 1 ¢ 1 ¢ 1 ¢ 1 ¢ 1 ¢ 1 ¢ 1 ¢ = 10¢ 9 10 ¢ 10 ¢ 10 ¢ 10 ¢ 10 ¢ 10 ¢ 10 ¢ 10 ¢ 10 ¢ 10 ¢ = $ 1.00 . Cataloging-in-Publication Data Freeman, Marcia S. (Marcia Sheehan), 193 7- What makes ten? : number facts / Marcia S. Freeman. p. cm. -- (Math focal points) Includes. 97 8-1 -6 004 4-6 4 2-9 (Hardcover) ISBN 97 8-1 -6 004 4-6 8 6-3 (Softcover) 1. Counting--Juvenile literature. 2. Ten (The number )-- Juvenile literature. I. Title. QA113.F749