ITEM NAME:Plastic Abacus Arithmetic Abacus Kids Calculation Tool 17 digits S4C3 Plastic Abacus Arithmetic Abacus Kids Calculation Tool 17 digits S4C3 R8A6 Abacus style abacus, plastic frame, 17 digits A bead above and four beads below Give concrete visual representation of numbers by beads A very useful tool in general mathematics education The abacus, also called a counting frame, is a calculating tool where beads are moved down and be carried out by the feel and look at the beads, complex calculations. Package: 1 x Abacus Note:Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/-1-3cm..A very useful tool in general mathematics education.
