Abacus Lesson - ADD and SUB -

Hirokuma.App

Contains adsIn-app purchases

About this app

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.

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Ratings and reviews

Brilliant app. I want to thank the Japanese developer for all your hard work and commitment to this fascinating technology. The Japanese abacus is a tool that helps the development of the mind to a supreme degree. I have seen kids in japanese junior high schools doing things so astounding, making super fast calculations of huge numbers. It is almost unbelievable. The Japanese abacus, or Sokoban, is my favorite tool for brain training. But is much more than that. It is an art form. I love it.

Abacus lessons are indeed fascinating and have been proven to be beneficial for developing mental arithmetic skills. If you're looking to pursue abacus lessons, it's a great decision as it can improve not only computational abilities but also concentration and memory. I encourage you to enroll in abacus classes and discover the joy of mastering this ancient method of calculation. Happy learning!

Not begginer friendly at all, when you go to the practice on lesson 7, there are just a lot pf problems and it would be good to know if you answered wrong right after you submit your answer. It just sucks and a beginner can't really learn that way. We should know where we commited a mistake before giving us another problem. Ick.

What's new

Fixed policy violations