Abacus Lesson 4+

Name: Abacus Lesson
Author: Hirokazu Komatsu

Hirokazu Komatsu

Diseñada para iPad

- Gratis
- Ofrece compras dentro de la app

Descripción

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

10 sept 2023

Versión 1.1.5

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

Hirokazu Komatsu, que desarrolló esta app, indicó que entre las prácticas de privacidad de la app, pueden incluirse el manejo de datos que se describe a continuación. Para obtener detalles, consulta la política de privacidad del desarrollador.