Saturday, July 26, 2008

how to calculate math faster(6)

how to calculate 197 x 196, 198 x 195, 194 x 199 ... in a faster way?
here how it works!










easy right?
and don't forget to practice all your math skills,ok?
ALL THE BEST FOR YOU!!!

Posted by mamo. at 9:52:00 AM
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it's free....

if you find any difficulties in math, please don't hesitate to contact me, please send your question to hi-mamo@hotmail.com i'll do my best.

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