Abacus Lesson - ADD and SUB - 3.1.9

An abacus, called "Soroban" in Japan, is a simple calculating tool traditionally used in countries like China, Japan, and Korea. Despite the prevalence of modern electronic calculators, the abacus offers a unique approach to mental arithmetic due to its tactile nature. This app aims to enhance your calculation skills by introducing you to the efficient use of this ancient device.

As you explore the functionalities of this application, you will discover how performing calculations, even up to three digits, can be achieved effortlessly without the need for physical tools. By incorporating the techniques employed with an abacus into your mental math processes, you can sharpen your mathematical abilities.

• Twitter: https://twitter.com/p4pLIabLM00qnqn
• Instagram: https://www.instagram.com/hirokuma.app/