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- Abacus - Simple Soroban Abacus
- iOS 应用: 教育 来自: Switt Kongdachalert
- 免费
- 列表: 0 + 0 排名: 0 评价: 0
- 积分: 1 + 11 (2.7) 版本: 1.1 A simple soroban abacus that also shows the number representing the value of each column. An abacus is a tool that has been used since ancient times to calculate. Calculations with ... ⥯
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