Speedy Calculation

Speedy calculation is a funny game, simple operation, good for both young and old. It can enhance mental arithmetic skills, logical thinking, which can teach and entertain at the same time.
Picture's style is pure and fresh. Simple operation, all kinds of challenging levels , will surely satisfy your appetite challenging super brain.
How to play:
Remember the digital quickly and worked out the answer.
Playing with friends, who has the super Brain, who is the real quick Master.