Different Kinds of Abaci

   There are many kinds of abaci in the world in Japan the abacus is called the Soroban, in China it’s called the Suan-pan and in Russia it’s called the Scet. The Soroban has one bead per column on the top row, and has four beads per column on the bottom row and it is vertical (diagram 1).

 

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Diagram 1

 

The Saun-pan has 5 beads on the bottom and it has 2 beads on the top row and it is vertical (diagram2).

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Diagram 2

 

The Scet is horizontal but the others are vertical. It has four black then two white then four more black ones in each horizontal bar (diagram 3).

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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Diagram 3

 

 

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