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Estimation

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

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Estimation

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  1. Estimation Do it in your head

  2. 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.

  3. 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.

  4. 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.

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