Prealgebra (7th Edition)

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

Chapter 5 - Test - Page 405: 5



Work Step by Step

When subtracting numbers with different signs, begin by subtracting the absolute values of both numbers: The absolute value of 9.83 is 9.83. The absolute value of -30.25 is 30.25. Subtract these two numbers: 30.25 - 9.83 = 20.42 Now, as 30.25 has the bigger absolute value, the sign associated with this original number is the sign that should be used with our total. As -30.25 has a negative sign attached to it, our answer must be negative: -20.42
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