Math ATube.com

.......................................................................................................................................................................................

. |

video |

let's do it for education

. |

>** Estimating Sum** < you are here

add. When estimating a sum first decide what

rounding will take place.

Example word problem:** At the book store, the teacher **

bought 279 storybooks and 167 coloring books.

About how many books did he buy in all?

bought 279 storybooks and 167 coloring books.

About how many books did he buy in all?

Example-2:** There were 68 people at the dance on **

friday and 153 people on Saturday. About how

many people were at the dance in all.

friday and 153 people on Saturday. About how

many people were at the dance in all.

Example:** 276 + 593 + 734 to the nearest hundreds.**

You can estimate numbers to the nearest ten, hundreds,

thousands, ten-thousands, etc.

thousands, ten-thousands, etc.

Related pages

Estimating Differences

Front End Estimation of

Sums.

Estimating Differences

Front End Estimation of

Sums.

Related page

Leading digit estimation

Leading digit estimation