價格：免費
檔案大小：1.4 MB
版本需求：需要 iOS 7.1 或以上版本。與 iPhone、iPad 及 iPod touch 相容。
支援語言：英語
Do you know you can't do simple maths under pressure?
Would you like to try it!
Get this never-ending game to challenge yourself with simple mathematical operations.
支援平台：iPhone