Abacus Lesson

By Hirokazu Komatsu on AppTrack Ninja.

Change your life with abacus!

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 m…

Categories: Education, Utilities

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