To multiply two numbers by hand takes a few steps but it's something we're taught in school. When dealing with big numbers, really big numbers, we need to a quicker way to do things.

Test out your knowledge of adding 3-digit and 1-digit numbers together with this quiz, then read on to complete the page.

What is addition? You use addition to find the total amount, when you have two or more numbers. You use the addition symbol (+) to add numbers together and then the equals symbol (=) to give you ...

Mathematicians have reportedly discovered a new way of multiplying two numbers together. The new technique is for really large numbers, and if it passes a peer-review, could be the fastest ...

To multiply two numbers by hand take a few steps but it’s something we’re taught in school. When dealing with big numbers, really big numbers, we need to a quicker way to do things.

Prime numbers are whole numbers greater than 1 that are not divisible by any whole number other than 1 and itself. The first few are 2, 3, 5, 7, 11, 13 … To explain how the RSA algorithm works ...

Forget your times tables – mathematicians have found a new, faster way to multiply two numbers together. The method, which works only for whole numbers, is a landmark result in computer science.

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.

Multiplication of two numbers is easy, right? At primary school we learn how to do long multiplication like this: The long way to multiplication. David Harvey Methods similar to this go back thousands ...