Friday, February 10, 2012

Divisibility Rule for 9

The rule for 9 is when you add all the digits of a number and it equals to a multiple of 9 (it can only be whole numbers and not fractions)

For example

Here's a link learn more about divisibility Click Here

1 comment:

  1. I liked how you explained the divisibility rules for 9. I also like your picture, it helped me a lot!