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Yoetaun 13 Column Portable Plastic Abacus Arithmetic Soroban Calculating Tool With Color Colorful
brand new and high quality The abacus also called a counting frame is a calculating tool where beads are moved up and down and by feeling and looking at the beads complex calculations are made. Soroban abacus is great for rapid calculation.This...
$9.78 $8.69 Delivery: $2.50
