Basic College Mathematics (10th Edition)

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

Chapters 1-6 - Cumulative Review Exercises - Page 472: 3

Answer

Estimate: $4,900,000$ Exact: $4,628,904$

Work Step by Step

We need to multiply: $~~~6538$ $\times ~~\underline{108}$ First, we estimate by rounding: $~~~~~~~~~7000$ $~~~~\times ~~\underline{700}$ $4,900,000$ Next, we find the exact answer: $~~~~~~~~~7000$ $~~~~\times ~~\underline{700}$ $~~~~~~~52304$ $+\underline{4576600}$ $4,628,904$ We see that our estimate and exact answers are fairly similar.
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