Basic College Mathematics (9th Edition)

Published by Pearson
ISBN 10: 0321825535
ISBN 13: 978-0-32182-553-7

Chapter 1 - Whole Numbers - 1.7 Rounding Whole Numbers - 1.7 Exercises: 66

Answer

Ten-million: 557,460,000,000; Hundred-million: 557,500,000,000; Billion: 557,000,000,000.

Work Step by Step

To round to the nearest ten-million, we see that the digit to the right of the ten-millions place is 3, so we round down and keep the same value (557,460,000,000). To round to the nearest hundred-million, we see that the digit to the right of the hundred-millions place is 6, so we round up to the next biggest hundred-millions value (557,500,000,000). To round to the nearest billion, we see that the digit to the right of the billions place is 4, so we round down and keep the same value (557,000,000,000).
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