i-Nnovate

How do you check the answer of a large multiplication like 8216*4215=36430440 without actually doing the multiplication. Sum 8+2+1+6=17. Tak...

How do you subtract 5592 from 11149. Simple question.... There's an interesting method which involves only addition as it is easier to d...

There's a very good article about Pascal's Triangle in Wiki. I am just enumerating some important points for quick reference. - Con...