Abacus Lesson - ADD and SUB -

Contains adsIn-app purchases
4.7
5.06K reviews
100K+
Downloads
Content rating
PEGI 3
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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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Updated on
Jul 31, 2024

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
This app may share these data types with third parties
Location, Web browsing and 2 others
No data collected
Learn more about how developers declare collection
Data is encrypted in transit
Data can’t be deleted

Ratings and reviews

4.8
4.67K reviews
David Whittaker
October 29, 2022
A well thought-out and useful app. Great for learning or relearning basic maths Suggestions are to have the option of turning the sound off as it can disturb others when I use it on the train. Also needs a part of the app that is a pure abicus when the user comes to the end of the lessons. Last part is the adds. I would have preferred to spend a few dollars on this app and own my copy outright than experience the advertising.
97 people found this review helpful
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Olayinka Babatunde
January 21, 2025
This app is great for beginners that wants to learn about abacus, it's like learning in reality with a teacher 5 stars for this👍👍 incredible just saw the vid on TikTok and came to play store to download a app good enough to teach myself and stumbled into this app and what do you know, it works perfectly, but I would like a tutorial about the hand method I mean abacus ain't common nowadays 🤔🤔but if you can use the hand method that would be nice, but overall nice app😀😀🙂
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AstaraelDarkrahBlack
November 22, 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.
13 people found this review helpful
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What’s new

Updated library