Mathemagic
Please don’t call me a nerd, but I think this video is fun … This guy can do complicated arithmetic in his head. I guess he’s using some kind of trick to simplify things but it’s still cool. It’s worth watching to the end where he squares a random 5-digit number in his head …
One thing freaked me out though … how come so many audience members are carrying calculators around with them? (Or were they using their cellphones?).
One Comment
that was awesome :)