P.J.
0
Math Trick - Multiply Using Lines!
https://www.youtube.com/watch?v=_AJvshZmYPs
Published on Jan 28, 2013
This amazing multiplication trick possible has it's origins in Japan
https://www.youtube.com/watch?v=_AJvshZmYPs
Published on Jan 28, 2013
This amazing multiplication trick possible has it's origins in Japan