Apps by Hirokazu Komatsu

Abacus Lesson 1.1.5

FREE
356+735+195, 23x89, 5626÷58, Can you solve each in 5 sec by mental arithmetic? The goal of this app is to learn abacus and solve these problems in mental arithmetic within 5 seconds. All lessons of the abacus lesson series, which have been highly...

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Abacus Lesson - Division - 1.2.1

FREE
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?"....

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Abacus Lesson -Multiplication- 1.2.4

FREE
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?"....

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Abacus Lesson -ADD and SUB- 3.1.9

FREE
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...

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Camera Info 1.0.7

FREE
You can get the following Camera Device Information on the unity platform . - Camera ID - Available Resolutions - Rotations - Sensor Orientations - Width and HeightVersion History No new feature. Fixed SKAdNetworkItems. 1.0.7 03/18/2021 changed app...

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Abacus Exercise 2.2.1

FREE
This app focuses on the ease of use of the abacus on the app, and aims to realize smooth and comfortable operability. In addition to being able to use the abacus widely on the horizontal screen, the size and position can be freely customized...

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