A free app for Android, by CDT Entertainment.

This app is not your ordinary mathematics solving problem game. In Mad Math Teacher – Solve Math & School Adventure, you will have to help your friend who has left his notebooks in school.

The only thing is that collecting it won’t be a breeze. Once you get into the school building, you will have to navigate your way through classrooms. Each room has a math problem that you have to solve.

If you succeed in solving everything, you can obtain clues on where your friend left his notebook.

But beware of the Mad Math Teacher because he might chase you away if you get caught.