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: 42

Answer

Estimate: 240 Exact: 236

Work Step by Step

56 rounds to 60, 24 rounds to 20, 85 rounds to 90, 71 rounds to 70. Adding the rounded numbers gives us 240, and adding the original numbers gives us 236.
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