# Dividing by Nine: Something Cute (VIDEO!)

Here is something not too serious, but cute. To divide a number by 9, just add up its digits in turn! For example:

124 / 9 = “1 and 1+2 and 1+2+4″ = 13R7

Let’s explore why this little curiousity works.

Here is something not too serious, but cute. To divide a number by 9, just add up its digits in turn! For example:

124 / 9 = “1 and 1+2 and 1+2+4″ = 13R7

Let’s explore why this little curiousity works.