Prealgebra (7th Edition)

by Martin-Gay, Elayn

Published by Pearson

ISBN 10: 0321955048

ISBN 13: 978-0-32195-504-3

Chapter 1 - Section 1.4 - Rounding and Estimating - Exercise Set - Page 39: 66

Answer

52,800,000 53,000,000 50,000,000

Work Step by Step

To round, inspect the number to the right. Round up if greater than 4. $52,\underset\uparrow800,000$ round up to 53,000,000 $5\underset\uparrow2,800,000$ round down to 50,000,000

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