Here is an interesting "trick" your young mathematicians can perform. They are taught how to find any number's "digital root," by following a set of detailed instructions. The process works for any number, and is the type of math puzzle...

Amaze your friends with this number trick! Mystery Math is a number game that allows you to guess another person's secret number. If you want to play Mystery Math with the computer, you will need a pencil, a piece of paper and a...