TERNCOEW 2pcs 17 Digit Rods Standard Abacus Soroban Chinese Ja | Shop The World
From USA
NewTERNCOEW
TERNCOEW 2pcs 17 Digit Rods Standard Abacus Soroban Chinese Japanese Calculator Counting Tool Mathematics Beginners Replacement Abacus for Toddler Montessori
ℹ
Products from the USA may come with an input voltage of 110V–120V, requiring a step-down transformer. Check the device wattage to select the correct power converter.
•✔ The abacus is a calculating tool that was used for centuries before the adoption of the written modern numeral system.
•✔ The abacus is still widely used by merchants, traders and clerks in certain parts of the world such as Asia and Africa.
•✔ In addition to being a professional tool, the soroban abacus is also an educational tool.
•✔ The abacus is widely used in teaching children counting and mathematics.
•✔ People who become proficient in the use of the abacus almost automatically become adept at mental calculation.
From USA
