Basic College Mathematics (10th Edition)

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

Chapter 1 - Whole Numbers - 1.3 Subtracting Whole Numbers - 1.3 Exercises - Page 29: 47


80 - 73 = 7

Work Step by Step

80 - 73 Subtract the ones column. Since 0 is less than 3, borrow from tens column and compute 10 - 3. Write 7 in the ones column of your result. Subtract the tens column, SInce you borrowed from the tens column in the previous step, compute 7-7. The result is zero so write nothing in the tens column.
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