價格：免費
更新日期：2019-03-24
檔案大小：5.6M
目前版本：5.7
版本需求：Android 4.0 以上版本
官方網站：mailto:eruvisukasutoro@gmail.com
Practice addition, subtraction, multiplication and division.
Monitor how many arithmetic problem you can solve within a given set of time.
Highest rating stored per category. Arithmetic Operations must be exercise using this app.