Answer
Estimate: 40
Exact: 35
Work Step by Step
78 rounds to 80, 43 rounds to 40.
80 - 40 = 40
78 - 43 = 35
Basic College Mathematics (10th Edition)
by Lial, Margaret L.; Salzman, Stanley A.; Hestwood, Diana L.
Published by
Pearson
ISBN 10:
0134467795
ISBN 13:
978-0-13446-779-5
Chapter 1 - Whole Numbers - 1.7 Rounding Whole Numbers - 1.7 Exercises - Page 73: 43
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