Hirokazu Komatsu
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더Abacus Lesson - Division - 1.2.1
Hirokazu Komatsu - 프리웨어 -The abacus, known as "Soroban" in Japan, is a traditional calculating tool that holds significant cultural value in several countries, including China and Korea. 더 많은 정보 ... -
더Abacus Lesson -Multiplication- 1.2.4
Hirokazu Komatsu - 프리웨어 -An abacus is known as a "Soroban" in Japan. Originating from ancient China, the abacus is a simple yet efficient calculating tool used across various countries including Japan and Korea. 더 많은 정보 ... -
더Abacus Exercise 2.2.1
Hirokazu Komatsu - 프리웨어 -This application emphasizes the user-friendly interface of the abacus feature, striving to provide seamless and convenient operation. 더 많은 정보 ... -
더Abacus Lesson 1.1.5
Hirokazu Komatsu - 프리웨어 -Can you solve 356+735+195, 23×89, 5626÷58 in 5 seconds using mental arithmetic techniques? This application aims to teach users how to operate an abacus proficiently and solve mathematical problems mentally within a time constraint of 5 … 더 많은 정보 ... -
더Abacus Lesson -ADD and SUB- 3.1.9
Hirokazu Komatsu - 프리웨어 -This app offers a unique learning opportunity for individuals seeking to improve their skills in addition and subtraction using an abacus. 더 많은 정보 ...