Abacus Lesson 4+

Hirokazu Komatsu

专为 iPad 设计

    • 免费
    • 提供 App 内购买项目

简介

356+735+195, 23×89, 5626÷58, Can you solve each in 5 sec by mental arithmetic?
The goal of this app is to learn abacus and solve these problems in mental arithmetic within 5 seconds.
All lessons of the abacus lesson series, which have been highly evaluated all over the world, are recorded. The lessons have been reworked in a more polite and easy-to-understand.
In addition, we have added unique training methods such as training focusing on finger movements and mental arithmetic training to improve mental arithmetic in order to learn abacus more efficiently.
And various improvements have been made.
- Either vertical screen or horizontal screen can be selected.
- The position and size of the abacus and window can be freely laid out.
- No ads.
- Added sound variations. Volume control can also be finely set.
- The color of the abacus can be set freely.
- Earn a trophy by achieving the goal.
- Smoother operability by optimizing the app.



◆Support web page
 https://hirokuma.blog/?p=4427

新内容

版本 1.1.5

Updated IAP Library.
Fixed an issue that fail to verify receipts signed with sha-256

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开发者“Hirokazu Komatsu”已表明该 App 的隐私规范可能包括了下述的数据处理方式。有关更多信息,请参阅开发者隐私政策

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