Prealgebra (7th Edition)

Published by Pearson
ISBN 10: 0321955048
ISBN 13: 978-0-32195-504-3

Chapter 1 - Section 1.3 - Adding and Subtracting Whole Numbers, and Perimeter - Exercise Set: 117

Answer

no

Work Step by Step

Subtraction is not commutative because $a-b$ does not equal $b-a$ in every case. For example: $7-2=5$ but $2-7=-5$
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