Calculon

Small game to learn and practice mental arithmetic in the basic arithmetic.

Main features:
- Different levels of difficulty can be set.
- It can be played against the clock.
- You can set an exercise duration (10 or 20 minutes)
- A number of tasks can be set (50 or 100)
- Different operations can be selected
- The mathematical operations can occur mixed.

** This app does not store data, does not track, does not contain advertisements and does not analyze user behavior