Abacus Lesson 1 // Introduction, Proper Technique, & History of the Abacus // Tutorial

How To Use An Abacus-Full Tutorial

Abacus from basics || Abacus Lesson 1 || Introduction.

Beginner's Guide to Using an Abacus for Kids

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History of Abacus | What is Abacus? | Evolution of Abacus | World's First Calculating Device

"Abacus Explained : Origins, Benefits, and Basics"

The Fascinating History of the Ancient Chinese Abacus