# Rounding and estimating

91.7 + 88.6 + 89.1 + 92.52 + 90.6

3.9 + 8.1 + 2.06

Standard = what process you always use. For example, if you always round up for 6 or .6, etc., then that's your standard. Using that standard, then you'd have the following:

92 + 89 + 89 + 92 + 91 = almost the same as 5 x 90 = 450 (estimated)

4 + 8 + 2 = 14 (estimated)

Someone else may have further or different information, but this is what my grandchildren have been studying.

=)

I searched Google under the key words "math rounding clustering front-end" to get these possible sources:

http://www.holychildrye.org/faculty/emorgan/Math6_classnotes.htm
http://www.atlantic.k12.ia.us/~sixthwp/mcurr.htm

I hope this helps. Thanks for asking.

I need help rounding numbers.

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1. 4.2+3.7

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2. 8.0

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3. What is the estimate product of 436 multiplied by 93

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