Basic College Mathematics (9th Edition)

Published by Pearson
ISBN 10: 0321825535
ISBN 13: 978-0-32182-553-7

Chapter 1 - Whole Numbers - 1.3 Subtracting Whole Numbers - 1.3 Exercises - Page 29: 43

Answer

7059

Work Step by Step

First, the 8 in the ones place is less than 9, so in order to subtract we first have to regroup from the tens digit to turn 8 to 18. Then we subtract 18-9 = 9 for the ones column. Next, since the 3 in the tens place became 2, we have to regroup again from the hundreds digit to turn 2 to 12. We subtract 12-7 = 5 for the tens column. Next, we subtract 4-4 = 0 for the hundreds column. The thousands column simply takes the 7. From the 7 in the thousands place, 0 in the hundreds place, 5 in the tens place, and 9 in the ones place, we get 7059.
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