توضیحات:

A mental arithmetic game that competes with people from all over the world, start now.

You can improve your amusement skills with a variety of problems and levels.
Check out the various issues of addition, subtraction, multiplication, and division
You can start Level 1 and challenge level 5.
If you complete it in a quick time, the score increases.
Compete with people around the world and your calculation capacity!