Explanation Approach: Estimation: There are two methods of quick estimates of the numbers. One is rounding off method and the other is compatible numbers. In the rounding off method, if the digit to the right of the digit is 5 or greater than 5 , then we round up the number else we round down the number. In the compatible method, instead of using the given numbers in a problem, we substitute other numbers that are easier to work with. Calculation: Given: 18 % × 683

6th Edition

ISBN: 9780134434681

Author: Tom Pirnot

Publisher: PEARSON

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Chapter 1.3, Problem 12E

To determine

To estimate:

The answer for 18%×683.

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Chapter 1.3, Problem 11E

Chapter 1.3, Problem 13E

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