價格：免費
更新日期：2019-04-22
檔案大小：12.8 MB
目前版本：1.4.5
版本需求：OS X 10.10.0 或以上版本，64 位元處理器
With „Simple Grids“ kids and adults can practice mental arithmetics (addition, multiplication) in the range from 0 to 900. When solving tasks with higher difficulty settings they also can improve their subtraktion and division skills.
