Mathville Jungleway 1.0
Mathville Jungleway is a good program to teach kids how to add and subtract larger numbers.
The bubbles have math problem in them and the fish have a range of answers, you have to match the bubble with the correct fish. For example, the problem is 24 + 10; you would make the bubble hit the fish that has answers 31 40. To move the fish, just click on the arrows at the bottom of the screen. Good luck!
In the demo version, only the fish are available.