This is a math game for all ages.
This is a study mathematics numeracy skills and responsiveness of the game. A total of 200 math problems, every problem has a set of answer time. You need to complete all the questions as soon as possible so the more you score, game, joined the global list, quickly and around the world who Biyi Bi master it.
Features:
1. Question bank variety.
2. A reasonable scoring system
3. The world rankings.