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March 28, 2015

Homework Help: Math

Posted by B.B. on Wednesday, June 10, 2009 at 11:12am.

I cannot figure this problem out. I have did it several ways and get conflicting answers. Give an estimate for the following expression: 12*26. Then state whether you believe that the exact answer is greater than or less than the estimate. Explain how you decided. Here is how I started the problem 12*26=312(this is the original problem) 10*30=300 The exact answer is greater than the estimate. I rounded 12 to 10 and 26 to 30. Can someone explain this a little better to me? Thanks.

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