Answer
$17$
Work Step by Step
Given that the difference between $77$ and $60$ is $17$ we use addition to check the answer to a subtraction problem.
$60 + 17 = 77$
Check
The number needed to complete the check is $17$.
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 - 1.3 Subtracting Whole Numbers - 1.3 Exercises - Page 28: 5
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