Thinking Mathematically (6th Edition)

Published by Pearson
ISBN 10: 0321867327
ISBN 13: 978-0-32186-732-2

Chapter 1 - Problem Solving and Critical Thinking - Chapter Summary, Review, and Test - Review Exercises: 15

Answer

a. $923,187,500$ b. $923,187,000$ c. $923,200,000$ d. $923,000,000$ e. $900,000,000$

Work Step by Step

Rounding $923,187,456$ to the nearest: a. hundred $923,187,500$ (The tens digit is 5, so we increase the hundreds digit by 1 and replace the ones behind it with 0). b. thousand $923,187,000$ (The hundreds digit is 4, so we keep the thousands digit the same and replace the ones behind it with 0). c. hundred thousand $923,200,000$ (The ten thousands digit is 8, so we increase the hundred thousands digit by 1 and replace the ones behind it with 0). d. million $923,000,000$ (The hundred thousands digit is 1, so we keep the millions digit the same and replace the ones behind with 0). e. hundred million $900,000,000$ (The ten millions digit is 2, so we keep the hundred millions digit the same and replace the ones behind it with 0).
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