Prealgebra (7th Edition)

Published by Pearson
ISBN 10: 0321955048
ISBN 13: 978-0-32195-504-3

Chapter 5 - Section 5.3 - Multiplying Decimals and Circumference of a Circle - Vocabulary, Readiness & Video Check: 3

Answer

right zeroes

Work Step by Step

When a whole number is multiplied by a power of 10, the number of zeroes in the power of ten are added on the right side of the whole number to fill in up to the new decimal. $123\times10=123\underset{\smile}\!\!\!\!\!\!.0.=1230$ Similarly, the decimal is moved when the factor multiplied by a power of 10 is not a whole number. $12.3\times10=12\underset{\smile}\!\!\!\!\!\!.3.=123$
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