Cool Math 4 All

I know this one from experience.  Cool math is a term that is very rarely used because most people do not like math so how can something disliked by people be fun.  All I can say is play games.   It is hard to tell but almost every board game uses math...

Ok here's a cool math trick that will give you an answer with your age and the number of siblings you have
1.   Take Your age
2.      Multiply your it by 2

take a number that ends in five lets say 35 and first take the first digit and multiply it by itself +1 so 3x(3+1) and you get 12 so those are the first two digits then take the square of 5 and get 25 so you get 1225.  I Guarantee this works with any...

Okay so everyone wants to do multiplication quickly right.  Well we all know how to multiply by 10, 1, 2,3,4,5,6,7,8, and even 9 but what about 90's.  Here is a trick to multiply numbers in the 90's quick and easy.
So take two numbers in the 90's let's say 94 and 97 we type it in on a calculator and get 9118 and here is how you can do it in your head....