COOLBABY Digital Standard Abacus-20 cm-Professional 13-Column Soroban Calculator

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 13-digit professional abacus is made of high-quality ABS plastic and measures 7.88 x 2.5 x 0.75 inches (20 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