Posted by Todd on Thursday, September 22, 2011 at 5:43pm.
23x17 in expanded algorithm

math  Steve, Friday, September 23, 2011 at 11:43am
23
x17

21 = 3x7
140 = 20x7
3 = 3x1
20 = 20x1

184
Now, I had never heard of this method. I did a google and found lots of examples. Seems like you could have made a similar effort before asking someone else to solve your problem.

math  Steve, Friday, September 23, 2011 at 11:44am
oops. and I got it wrong, too. Can you fix it?
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