Abacus Lesson
Hirokazu Komatsu
356+735+195, 23×89, 5626÷58, Can you solve each in 5 sec by mental arithmetic?
In-app purchases in United States
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About Abacus LessonStorefront description supplied by Apple.
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
Frequently asked questions
Quick answers based on the latest observed App Store data.
How much does Abacus Lesson cost in United States?
The latest observed download price is Free. Open the official App Store link to confirm the current checkout price.
Does Abacus Lesson have in-app purchases?
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