17 Digits Rods Standard Abacus Chinese Japanese Calculator Counting Tool Math Learning Beginners

It is a calculating tool that was used for centuries before the adoption of the written 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 or abacus is also an educational tool. Widely used in teaching children counting and mathematics. who become proficient in the use of the abacus almost automatically become adept at mental calculation.Its classical, standard design allows for its ease of use as a professional and educational tool. Soroban Abacus only, other accessories demo in the picture is not included.Specification:Item Type: Abacus Material: MetalDimensions: app.34x8cm/13.39x3.15inColor: As the picture shownPacking: 1 * calculator Please understand that due to differences in lighting or computer monitors, I cannot that the photos and actual colors are the same.Due to different measurement methods, there may be a deviation of 1-2cm.Scientific calculator has 2-line display shows entry and calculated result at same time. Input expressions and arithmetic operations same as written form in the textbook, convenient for to check the calculation process and results

• It is a calculating tool that was used for centuries before the adoption of the written 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 or abacus is also an educational tool.
• Widely used in teaching children counting and mathematics.
• who become proficient in the use of the abacus almost automatically become adept at mental calculation.
• Ergonomically designed hard sliding cover can protects the calculator and also provide a comfortable grip