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Trevi Plastic Abacus Arithmetic Soroban Kid's Calculating Tool 17 Digits
DESCRIPTION
Soroban style abacus, plastic frame, 17 digits One bead above and four beads below Give concrete visible display of numbers by beads A very useful tool in general mathematics education Widely used by kids, accounting students, merchants, traders, etc
- Trevi Plastic Abacus Arithmetic Soroban Kid's Calculating Tool 17 Digits