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>** Estimating Numbers** (Introduction) < you are here

an exact answer is not necessary. Estimation also

allows you to check the reasonableness of an answer

(does the answer make sense).

To estimate a number, you first have to round the

number then do the required operation.

Example: **Tyler wants to go to the movies. Train fare **

there and back is $11.50 and the admission fee is

$16.74. About how much money does Tyler need?

there and back is $11.50 and the admission fee is

$16.74. About how much money does Tyler need?

Estimate the amount she will need by rounding each

amount to the nearest ten. Then add.

amount to the nearest ten. Then add.

actual amount.

Related pages

Estimating sums

Estimating Differences

Estimating sums

Estimating Differences

Related pages

Leading digit estimation

Front End Estimation of

Sums.

Leading digit estimation

Front End Estimation of

Sums.