Thinking Mathematically (6th Edition)

Published by Pearson
ISBN 10: 0321867327
ISBN 13: 978-0-32186-732-2

Chapter 5 - Number Theory and the Real Number System - 5.5 Real Numbers and Their Properties; Clock Addition - Exercise Set 5.5 - Page 308: 31


associative property of addition

Work Step by Step

The associative property of addition states that for any real numbers $a, b$, and $c$, $a+(b+c)=(a+b)+c$ This is clearly the form of the work shown in the problem. Thus, the given statement illustrates the associative property of addition.
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