Digital Standard Abacus-25.4 cm-Professional 17-Column Soroban Calculator (Functional and Educational Tool)

The abacus from ancient China; its characteristic is that the counting system used before modern numbers is still used by some businessmen, traders and clerks. It is a good tool for mathematics education.. This 17-digit professional abacus is made of high-quality ABS plastic and measures 10.5 x 2.5 x 0.75 inches (26.5 x 6 x 1.5 cm) An abacus that makes math exercises more effective; using an abacus to calculate children's mathematical ability is a good way to teach them to count and calculate intelligence. It can be used as a classic office calculator, a teacher's, an educational tool for children or a gift for abacus collectors. The abacus is very suitable for fast calculations. It is highly recommended to use it in any math abacus course