Hello Gummy Bears,
This math trick is really cool. I need every body to try it, and i will tell you the answer:
Pick any number you want.
add another number same as your number that you picked.
add my number which is 14.
divide by 2 .
return back your origin number that you picked first.
and then the result will be 7.
if you do not get the answer i will tell you how i did it in the class tomorrow.
have fun and enjoy math trick.
and you can have this web side too which are plication/http://arloo.blogspot.com/2005/10/cool-math-trick.html
http://www.metacafe.com/watch/315070/cool_math_trick_really_fast_multi