價格：免費
更新日期：2016-08-22
檔案大小：48 MB
目前版本：1.1.0
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
This application is designed to be used for the development of the child. In order to learn and practice skills in math calculations such as adding a negative number for the child., which will help with the development of extra flair that makes children smarter.
支援平台：iPhone