Estimation 1

Estimation 1 - Transcript

Estimation
Do it in your head

Estimation
Estimation is doing math in your head You get an answer that is not exact Round the numbers in the question Work the problem with the rounded numbers

Example
Estimate 3 14 x 4 871 Round 3 14 is close to 3 4 871 is close to 5 Work the problem 3 x 5 15 3 14 x 4 871 is approximately 15

Estimating with division
Estimating division answers is a bit more complicated Instead of just rounding the numbers use numbers that are close to the numbers in question but that divide evenly