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Re: Visualization and mental math
Posted By: Travholt, on host 148.122.66.41
Date: Saturday, August 18, 2001, at 02:01:35
In Reply To: Re: Visualization and mental math posted by gabby on Friday, August 17, 2001, at 22:56:18:

> For mental math, it often helps to change the problem to a bunch of easy steps. To do 18x31, which is ugly if not hard, the first step would be 20x31=620, then 2x31=62, then 620-62=600-42=560-2=558.

Which is EXACTLY the way I did it, too! I did it myself before looking at how you did it, and it fits right down to every little step.


> gab"BOAT's avg. location size = 5479 bytes"by

Trav"BOAT?"holt.