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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.

Soroban
Mental Calculations
Mathematical Combination
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