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Classical Mental Arithmetic (CMA) International provides enrichment classes specifically in two-hand abacus mental arithmetic. For almost three decades, CMA professionals have been offering their expertise to students of all ages, encouraging them to hone their mathematical skills.

Classical Mental Arithmetic (CMA) International provides enrichment classes specifically in two-hand abacus mental arithmetic. For almost three decades, CMA professionals have been offering their expertise to students of all ages, encouraging them to hone their mathematical skills.