Jung Lee | iOS 应用
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- Math Facts Drills
- iOS 应用: 教育 来自: Jung Lee
- $4.99
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- 积分: 0 + 0 版本: 1.0 Made this for my kids so they'll learn math and earn virtual badges. But I pair this up with real prizes. Badges are purely based on time because the goal is to make math facts muscle ... ⥯
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