Snoot and Fin partition two digit numbers to make multiplying them easier.

We'll explore how this shortcut works for both two-digit numbers multiplied by themselves, and even for multiplying two different numbers ending in 5.

This Maths article explains both the mental method and written method for multiplying a 2-digit number by a 1-digit number.

In long multiplication, we have to multiply every digit of the first number by every digit of the second number. If the two numbers each have N digits, that’s N2 (or N x N) multiplications altogether.

For super easy multiplication tricks, Check out these 5 super-easy multiplication hacks and start amazing your friends and teachers with your speed and skills.

Schönhage and Strassen predicted that an algorithm multiplying n -digit numbers using n * log (n) basic operations should exist, Harvey says. His paper is the first known proof that it does.

Multiplying 2 x 2 is easy. But multiplying two numbers with more than a billion digits each — that takes some serious computation. The multiplication technique taught in grade school may be ...