Basic College Mathematics (10th Edition)

Published by Pearson
ISBN 10: 0134467795
ISBN 13: 978-0-13446-779-5

Chapter 9 - Basic Algebra - 9.2 Adding and Subtracting Signed Numbers - 9.2 Exercises - Page 638: 5

Answer

To add two numbers with difference signs, perform the following steps: (1) Find the absolute value of each number. (2) From the results in Step 1, subtract the smaller absolute value from the bigger absolute value. (3) The sum will have the same sign as the number with the bigger absolute value (Please refer to the step-by-step part for an example.)

Work Step by Step

To add two numbers with difference signs, perform the following steps: (1) Find the absolute value of each number. (2) From the results in Step 1, subtract the smaller absolute value from the bigger absolute value. (3) The sum will have the same sign as the number with the bigger absolute value Example: $6+(-8)$ Step 1: $|6|=6$ $|-8| = 8$ Step 2: $8-6=2$ Step 3: $-8$ has a bigger absolute value so the sum must be negative. Thus, $6+(-8) =-2$
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.