【實用遊戲app】Arithmetick Free|最夯免費app-綠色工廠好玩App

This is a math game for all ages.This is a study mathematics numeracy skills and responsiveness of the game. A total of 100 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 system3. The world rankings.