RE: Mental Calculation Show: Arthur Benjamin, The Mathemagician
October 31, 2016 at 12:25 pm
(This post was last modified: October 31, 2016 at 12:25 pm by Fireball.)
I used to do mental math back when we had slide rules. One needs to be sure of the magnitude of the number when calculating, in order to operate the slide rule properly. After a while, it's just easier to do the math in your head. I could multiply a pair of two digit numbers faster in my head than most people could on a calculator. I haven't had a need for that in awhile, so it takes me longer to do it. Never heard of these books, but as long as I have a calculator, I'm OK. He's certainly entertaining!
If you get to thinking you’re a person of some influence, try ordering somebody else’s dog around.
