Basic College Mathematics (10th Edition)

Published by Pearson
ISBN 10:
ISBN 13:

Chapter 4 - Decimals - Review Exercises - Page 322: 41

Answer

Estimate: $40 \times 3$ = 120 Exact:141.57

Work Step by Step

$42.9 \times 3.3$ First Let's find Estimate: 42.9 (rounds to) 40 3.3 (rounds to) 3 So, $42.9 \times 3.3$ = $40 \times 3$ = 120 Now, Let's find Exact: 42.9 $\times$ 3.3 ______ 1287 + 1287 ______ 141.57 (2 decimals point in product)
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