This text has been translated by auto-translation. There may be a slight difference between the original text and the translation. (Original Language: 日本語)

From [Vivinavi] San Francisco

Super Math - San Francisco

A life-changing mental arithmetic program based on the traditional abacus. It improves mental arithmetic, memory, concentration, and self-confidence, and dramatically improves mathematical calculation skills. Ensures that you develop your mental arithmetic, calculation, and mathematical computation skills This program has been around since 1979 and has helped many students grow over the decades Over 40 years of history and trust to help you learn ！.

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