價格：免費
檔案大小：31.2 MB
版本需求：需要 iOS 11.0 或以上版本。與 iPhone、iPad 及 iPod touch 相容。
支援語言：英語
This app is for students that want to practice their mental math skills. Configure the type of questions you can be asked on the first tab and test your skills on the second tab. Use the third tab to see how you performed!
支援平台：iPhone, iPad