Algebra 1: Common Core (15th Edition)

Published by Prentice Hall
ISBN 10: 0133281140
ISBN 13: 978-0-13328-114-9

Chapter 1 - Foundations for Algebra - 1-4 Properties of Real Numbers - Practice and Problem-Solving Exercises - Page 28: 52


Subtraction is not commutative.

Work Step by Step

The Commutative Property of Addition states that order of addition does not matter, so we can add numbers in any order we choose. However, with subtraction, changing the order changes the sign of the answer. For instance: $5-1=4$, but $1-5=-4$. Thus, subtraction is not commutative.
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