Answer
25
Work Step by Step
Adding whole numbers is very simple
$$5+7+8+2+3=?$$
Sum numbers to left to right, in groups of 2
$$(5+7)+(8+2)+3=?$$
$$12+10+3=?$$
$$(12+10)+3=?$$
$$22+3=?$$
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 - 1.2 Adding Whole Numbers - 1.2 Exercises - Page 20: 71
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