Check out this cool game. I remember this from years ago when I was just a little kid. It has awesome number games in it.
You can download it at this abandonware site: http://www.myabandonware.com/game/young-math-37y
Here's a couple screen caps.
http://i.imgur.com/0Y3wxNV.png
http://i.imgur.com/My70W6C.png