To get started click the text on the left, type 1, and start entering solutions. It will automatically submit if the solution is correct. You can turn off the moving stuff with the hide meter/time options.
Just 26k with pure ActionScript! I made a video manual of this program on google video. Vote on the time spent, not the subject, thanks.
I also made google video tutorials for quick addition and two digit multiplication. If there's interest I'll make some for 3 digit and 4 digit multiplication.
Let me know how you do so I can adjust times. This is meant to be a useful practice application, you can download it to your desktop and redistribute unmodified as you please.