Math!
This app is able to generate itself of countless sums.
Drag the answer to the sum.
Good answer? You hear a tone and see stars twinkle, you have solved part of the plate.
Wrong answer? The outcome rushes back to his place.
Try to pop "count." The whole plate (picture).
There are several beautiful plates!
This app has no time limit!
Practice as much and as often as you want!
In no time, you are the computing engine of your class.
Good for home or school.