I came across this game, http://tee.lt/
It is a mobile game for learning multiplication tables by tilting the device (iPad) for children. I've tried it and this game is very funny. You need to feed the animals, you can check your stats,..
You already tried the game? If not, you can find Tee.LT on appstore or itunes (Tee.LT - Multiplication Tables) and let me know what you think. They also have fb acount.
HAve a nice day! xoxo