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Abacus Lesson - ADD and SUB -

About Abacus Lesson - ADD and SUB -
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. Some people may say "Isn't it an unnecessary tool if you have a calculator such as a smartphone?". Answer would be "No".

The biggest difference between electric calculators and the abacus is whether you need to hold it in your hand when calculating. Because of its simplicity, you will be able to easily use the abacus in your mind.

Imagine that you can use calculations of about 3 digits in your life without physical tools.

This app will give you the skill of calculation.


Recent Updates - Version 3.1.5
  • fixed minor bug.
Install On Your Mobile Device:
Google Play Store LinkApp Store Link
Install On Windows PC Or Mac:
BlueStacks LinkLDPlayer Link
How To Download & Play:
1. Download & Install AppKiwi
2. Download Abacus Lesson - ADD and SUB - APK
3. Launch from APK Library