Answer
(a) and (b) 281
Work Step by Step
(a) $(65+81)+135 = 146 + 135 = 281$
(b) $65+(81+135) = 65+216 = 281$
The sum is the same for both.
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 - 1.4 Multiplying Whole Numbers - 1.4 Exercises - Page 41: 107
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