Math Mental Calculation Free

Like Mathematics and mental calculation, this game is for you!
But be careful, you'll be quickly addicted ... Learn or update your knowledge via simple addition problems and challenge in duel your friends to show off your mathematics skills, but to win be fast and correct, it is a memory game against the watch.
Based on simple true or false, you don't get tired with over 17,000 problems to solve.

Addition, Multiplication, Subtraction or Division... in limited time. It is like puzzle game for kid and anyone that want to practice memory.
It is addictive mathematics and fast calculation game.

Collect badges and win levels after levels and compare with your friends.
It is 10 questions in 20 seconds.
Connected with Google Game Center to save your score and share with others.