Abacus Lesson - ADD and SUB -
Contains adsIn-app purchases
4.9star
4.77K reviews
100K+
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Everyone
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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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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.
https://twitter.com/p4pLIabLM00qnqn
https://www.instagram.com/hirokuma.app/
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Ratings and reviews
4.9
4.4K reviews
AstaraelDarkrahBlack
- Flag inappropriate
22 November 2024
I like this app but it feels like there's a lesson missing between lessons 6 and 7. I believe that there should be one where you have to do 2 two digit numbers before you get thrown into doing 5 or 6 two digit numbers at a time.
Q Q M A Formula
- Flag inappropriate
8 June 2024
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.
23 people found this review helpful
Kalyani Biswas Talukder
- Flag inappropriate
4 October 2024
That's not worth it . It's such a rubbish game I gave all the answers correctly but still this app is showing me that it's wrong . I do abacus practically I just installed this app so that I can practice more .PLEASE DO NOT UNISTALL IT .And waste your time. Better is to learn abacus practically .
2 people found this review helpful
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