Certified by The League of Japan Abacus Associations, and The Japan Chamber of Commerce Industry
Soroban/Mental calculation/Mathematical combination
UNUMA KEISUUKAN
UNUMA Keisuukan aims to train the learners to become a "Number Specialist" with high skills in calculations, mental calculations, sense of numbers, and mathematical thinking, through practice of Soroban (Abacus), Mental calculations and Mathmatical Combination.
