## Thinking Mathematically (6th Edition)

Published by Pearson

# Chapter 1 - Problem Solving and Critical Thinking - Chapter Summary, Review, and Test - Review Exercises - Page 43: 19

#### Answer

Rounding: 5 Actual: 4.76

#### Work Step by Step

Rounding off the numbers: $20\div4$ = 5 Actual answer: $19.894\div4.179$ = 4.76 It is a reasonable estimate as the difference is only 0.24.

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