Answer
420
Work Step by Step
In order to estimate the difference, we round each number to the nearest ten. Thus, we obtain:
$960-540=420$
Algebra 1
by Hall, Prentice
Published by
Prentice Hall
ISBN 10:
0133500403
ISBN 13:
978-0-13350-040-0
Chapter 1 - Foundations for Algebra - Get Ready! - Page 1: 9
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