價格：免費
檔案大小：24.1 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
1. Select the level
2. Answer the sum by touch the correct answer
3. Each right answer you will get rewarded by points
4. By default you have 3 life for each level
5. Gain more life for continuous right answer
6. Each wrong answers or each time out you will loss one life
7. Reach certain points in the Level to Unlock Next Level
支援平台：iPhone, iPad