Sounds ridiculous, but how do you perform a multiplication by addition? No, I don't mean solving 3 x 3 by 3 + 3 + 3. Instead, solving them by drawing lines, as simple as that.

Just watch the video below. I am totally amazed by the video.

 And I thought memorizing timetable is important.

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• |72.181.243.xxx |2009-06-07 20:57:00 Jason Mcspiky  - hmm...
  i saw this once and i was skeptical too. oh btw does it work for ALL equations? or only stuff with 1, 2 and 3...
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