【實用生產應用app】MathGym|最夯免費app-綠色工廠好玩App

MathGym exercises your brain with math problems of chosen difficulty. Just two minutes a day keeps you sharp! +, -, x, and /, include neg or large numbers, your choice. 1, 2, or 3 ops. A simple scoring system challenges you to beat your old score or practice using the no-score mode.