Answer
Estimate 880 million
Exact 940.82 million
Work Step by Step
Estimate
$400+200+100+80+40+30+30=880$
Exact
$420+239.9+99.14+81+43.98+30.6+26.2 = 940.82$
Basic College Mathematics (9th Edition)
by Lial, Margaret L.; Salzman, Stanley A.; Hestwood, Diana L.
Published by
Pearson
ISBN 10:
0321825535
ISBN 13:
978-0-32182-553-7
Chapter 4 - Decimals - 4.3 Adding and Subtracting Decimal Numbers - 4.1 Exercises - Page 287: 41
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