28

=28 Abacus=

=My cool Japan is abacus. It is called ”soroban” in Japan. The abaccus　is　used　to　calculate, and players compete The speed of　calculation. Abacus is intoroduced into Japan from China. However think abacus is cool Japan,because It has been used since　the　Muromachi period.= =Of course, I had learned how　to use it. I ought to have practiced　more. This is my regret.You learned how to use it too,didn’nt you?Though　abacus is an convinient item,　a lot of students often forget how to use it. I think this is wasteful.= ==