You can train your brain by this simple mental calculation of addition, subtraction, and multiplication.
You will receive more points by correcting more difficult questions.
This app records your results, and you can see how your brain is trained over time on the results page.
You can check your ranking in the Game Center, and compete with other players in the world.

●Features●
- Keep your brain in great condition.
- More points by correcting difficult questions faster.
- Records your results over time.
- You can check your ranking in the Game Center.