Do you know any fun math sites?

In My Humble Opinion
1

I’m looking for some web sites where my elementary school kids can play some fun math games… Any suggestions?

2

You might find some here:

http://www.khake.com/page47.html

3

I don’t know how much fun this is but one of my web pages
http://www.1728.com/arith.htm
generates 5 random math problems, you fill the answers in and the program then tells you which ones are correct.
Basically, it is “electronic flash cards” for addtion, subtraction, multiplication and division each having 3 levels of difficulty.
(For example, the addition problems can be chosen so that the “easy” ones are adding 2 one digit numbers, the tougher ones are 2 digit numbers added to 1 digit numbers and the toughest are adding 2 two digit numbers. It’s worth a look, in my humble opinion of course.