Buy Our High Quality Abacus/Soroban/ Slavonic Abacus from Japan.All kinds are available.

History of Soroban

The abacus is invented as a counting tool to count large numbers in ancient times.

T he abacus is invented as a counting tool to count large numbers in ancient times. During Greek and Roman times, most of the abaci were made of stones and metal. The popular form is a board with beads sliding on wires in a frame. In the mid 16th century, the Chinese abacus which had seven-bead in each column, two-bead in the upper deck and five-bead in the lower deck, was introduced into Japan. It became very popular and was used especially by Japanese merchants as a calculation tool in business. In around 1930, Japanese abacus, called “Soroban,” was modified into the modern configuration. It is made from wood, and has five-bead in each column, one-bead in the upper deck and four-bead in the lower deck. The Soroban/Abacus helps to perform mainly addition, subtraction, multiplication and division.

Fingering

The Soroban was one of the necessary calculation tools before the electric calculator was widely used in Japan. Yet, the Soroban has been an excellent educational tool for children to understand and recognize numbers since its introduction.T he Soroban/Abacus was one of the necessary calculation tools before the electric calculator was widely used in Japan. Yet, the Soroban/Abacus has been an excellent educational tool for children to understand and recognize numbers since its introduction. In addition, practicing Soroban/Abacus gives you more opportunity to develop your mental calculation ability. After mastering the Soroban/Abacus, you will need no calculator with you because you are capable of calculating numbers by visualizing Soroban/Abacus beads.

ページの上部へ