Different Types of Abacus - Chinese Suanpan - Japanese Soroban - Russian Schoty
4:24
Key Benefits of Learning ABACUS
29:31
What's My Favorite Abacus?
6:17
Japan's ancient secret to better cognitive memory - BBC REEL
13:23
Chinese Abacus: Counting
18:40
The Abacus - Part 1
7:01
How to Add using a Soroban (Japanese Abacus)
4:12
Roman Abacus - Number representation and Addition
4:20