Prealgebra (7th Edition)

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

Chapter 2 - Section 2.3 - Subtracting Integers - Vocabulary, Readiness & Video Check - Page 119: 7

Answer

Because multiplication takes place before addition or subtraction.

Work Step by Step

Using the order of operations, multiplication should take place before addition and subtraction. By making this a universal rule it means each expression will (ideally) only have one correct solution, which makes expressions more clear and easy to understand.
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