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‎Abacus Lesson -ADD and SUB- on the App Store

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‎Abacus Lesson -ADD and SUB-

og:description

‎This is an app that you can learn addition and subtraction using an abacus. 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 su…

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App Store

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https://apps.apple.com/in/app/abacus-lesson-add-and-sub/id1526785916

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‎Abacus Lesson -ADD and SUB-

twitter:description

‎This is an app that you can learn addition and subtraction using an abacus. 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 su…

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@AppStore

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