Front-End Estimation of Sums
Front-End Estimation: Learn
Front end estimation mostly produces a closer estimate of sums or differences than the answer produced by adding or subtracting rounded numbers.
How to Estimate a sum by Front-End Estimation:
- Add the digits of the two highest place values
- Insert zeros for the other place values
Examples:
- Add 4496 + 3745 by estimating them as 4400 + 3700 = 8100.
- Add 4496 + 745 by estimating them as 4400 + 700 = 5100.
Add with Front-End Estimation: Practice
Estimate the sum using Front-End Estimation
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