Abacus Lesson Reviews
Published by Hirokazu Komatsu on 2024-01-19🏷️ About: An abacus is named "Soroban" in Japan. Do you know what an abacus is? The abacus is very simple calculator used in China, Japan, Korea and so on.
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Features
Do you know what an abacus is? The abacus is very simple calculator used in China, Japan, Korea and so on.
The biggest difference between electric calculators and the abacus is whether you need to hold it in your hand when calculating.
In the app, we will explain simple and fast method of the multiplication using the abacus.
To learn multiplication, it is essential to be able to add with an abacus.
An abacus is named "Soroban" in Japan.
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Developer:
Hirokazu Komatsu
