價格：免費
檔案大小：64.5 MB
版本需求：需要 iOS 8.0 或以上版本。與 iPhone、iPad 及 iPod touch 相容。
支援語言：英語
The puzzle that everyone played in childhood appeared as an app!
Let's make 24 using prepared numbers and operators.
Even children who dislike studying are crazy and will work on this calculation puzzle.
Let's challenge the stage of 300 questions, from simple problems to problems that even adults can afflict!
支援平台：iPhone, iPad