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.
Basic College Mathematics (9th Edition)
by Lial, Margaret L.; Salzman, Stanley A.; Hestwood, Diana L.
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 - Page 73: 42
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