Small math tasks like "23 + 34 = " have to be solved in a certain time. You have to choose the right result out of two given possibilities. For each task you solved correctly your score will be increased. But be careful! One wrong answer will turn your score to zero.
The game also includes a mode for training, where you have unlimited time for every task and no scoring.
All tasks and results are generated dynamically, so the amount of possible tasks is not limited.
Finally, you can post your highscore via Twitter or on Facebook!