價格：免費
更新日期：2020-05-25
檔案大小：1.3 MB
目前版本：1.2
版本需求：系統需求：iOS 13.0 或以後版本。相容裝置：iPhone、iPad、iPod touch。
支援語言：英語
Your brain has to get used to mental arithmetic and set up automatisms. Practice arithmetic every day, until it becomes your second nature. Like breathing, running or cycling.
Mental arithmetic helps in everyday life and is a refreshing brain-teaser for all age groups and there is no boredom.
There are different levels of difficulty that can be set by the user. These range from beginners to experts.
支援平台：iPhone, iPad