Freaking Math-Brain exercises

Can you do maths very fast?
Although the game is simple, but it can produce a very powerful role!
It and the mathematical games that similar to this one makes math more interesting.
Exercisethe brain more, the brain will always be young; lazy thinking, the brain will be slow to respond.
This game is suitable for all ages. With an extremely simple design, train your brain, exercise math and reaction ability.
So, take some time everyday to experience the Freaking Math!
Have a nice game!