Abacus Mind Math Instruction Book Level 3: Step by Step Guide to Excel at Mind Math with Soroban, a Japanese Abacus (Abacus Mind Math - Level - 3 ... Book, Workbook 1 of 2, Workbook 2 of 2)

الوصف

Abacus Mind Math Instruction Book Level 3: Step by Step Guide to Excel at Mind Math with Soroban, a Japanese Abacus (Abacus Mind Math - Level - 3 ... Book, Workbook 1 of 2, Workbook 2 of 2)