calculations

With this app you will improve your counting skills. Different levels won't let you get bored, the simple interface is easy to use and saves battery power.

This app has

• different levels of operations: addition (+), subtraction (-), multiplication (*), division (/) and their mixes;

• 3 different hard levels;

• stylish design;

• simple interface;

This app has not

• paid content;

• unnecessary services;

• commercial advertisements;