Learn how to partition two digit numbers to make multiplying them easier with Bitesize First and Second Level Maths.

This article reveals a simple and effective shortcut for multiplying numbers that end in 5. Perfect for students, it breaks down the trick for both single-digit and double-digit numbers ending in ...

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

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.

But is this really the best way to multiply two big numbers together? In long multiplication, we have to multiply every digit of the first number by every digit of the second number.

The most efficient way to multiply two large numbers is often far from obvious.

You could consider simplifying the task by running two different replace tasks: one that finds only single-digit numbers and one that finds only double-digit numbers.