Multiplication of two numbers is easy, right? At primary school we learn how to do long multiplication like this: Methods similar to this go back thousands of years, at least to the ancient Sumerians ...

The first two lines of the calculation use the same procedure as that of above. In the third line we are multiplying by \(300\) (three hundreds). As we are multiplying by hundreds both the tens and ...

Multiplication is a fundamental skill in mathematics, but some number combinations can appear tricky. Imagine being able to quickly multiply numbers like 35 x 35 or 65 x 65 in your head, almost ...