How to Estimate the Sum or Difference

Estimation is helpful for performing quick calculations, however, the more that numbers are rounded, the less accurate the answer is going to be. To estimate the sum, just round the addends up or down, then add them together to reach an estimated sum. The same process applies to subtraction as well. Round the minuend and subtrahend up or down, then subtract them to reach an estimated difference.


Estimating the Sum or Difference
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Provided by: Mometrix Test Preparation

Last updated: 05/03/2018

 

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