價格：免費
檔案大小：61.4 MB
版本需求：需要 iOS 6.0 或以上版本。與 iPhone、iPad 及 iPod touch 相容。
支援語言：英語
Four operations in mathematics. Children and adults. Let's see who's smarter. Little brains are against adults. Come on, who can answer faster.
支援平台：iPhone, iPad
價格：免費
檔案大小：61.4 MB
版本需求：需要 iOS 6.0 或以上版本。與 iPhone、iPad 及 iPod touch 相容。
支援語言：英語
Four operations in mathematics. Children and adults. Let's see who's smarter. Little brains are against adults. Come on, who can answer faster.
支援平台：iPhone, iPad