MathMind

The rules are simple:
Your goal is to solve mathematical expressions with your mind.
For each expression that you solve your score, streak and counter will increase.
If you fail to solve one, your:
Score - will stay the same
Streak - turn back to 0
Counter - increase
Mode Switch:
It allows you to change the type of operation you want to train with.
Difficulty Switch:
You can choose between three difficulties, by playing with one, two or three digits.