Posted by megan on Monday, October 10, 2011 at 8:13pm.
When is an exact number needed and when is an estimate okay?

math  Cristian, Monday, October 10, 2011 at 8:35pm
When the problem has the words "about" or "round" or anything relatively close to that in it, I think that's a good time to estimate. Otherwise, use exact numbers, (:
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