Thursday, October 13, 2011

Estimating

5394 To figure out this question in your head, an easy way to do that is to estimate. First you
-2876 would find the largest place value, which is the first number on the left. You always round
____ the largest place value. Then you would look one place to the right. If that number is 5 or higher, then the first number would be rounded one number up. If the number to right is lower than 5, you would round it down. Then you finish the equation with a rounded answer.

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