The abacus was a calculator invented sometime between 1000 BC and 500 BC in China, often constructed as a wooden frame with beads sliding on wires. It was in use centuries before the adoption of the written Hindu-Arabic numeral system and is still widely used by merchants and clerks in China, Japan, Africa and elsewhere. The abacus is also widely used in teaching counting and mathematics. This standard set is perfect for practical use as well as teaching children.
- The abacus was an invention from ancient China that uses a system of counting that predates even modern numbers and is still used by some businessmen, traders, and clerks today since it is very suitable for fast calculations.
- 13 digit professional soroban style abacus with plastic frame. Beads Number: 5 Beads Per Row x 13 Rows
- Measures 8" x 2.5" x 0.75" (20.5cm x 6.3cm x 1.5cm)
- A great mathematic tool that is both practical and educational: This standard set is perfect for practical use as well as teaching children (Instruction not included)
- It can be used as a classic office calculator, an educational tool for children or a gift for abacus collectors.
- The abacus was an invention from ancient China that uses a system of counting that predates even modern numbers and is still used by some businessmen, traders, and clerks today since it is very suitable for fast calculations.
- 13 digit professional soroban style abacus with plastic frame. Beads Number: 5 Beads Per Row x 13 Rows
- Measures 8" x 2.5" x 0.75" (20.5cm x 6.3cm x 1.5cm)
- A great mathematic tool that is both practical and educational: This standard set is perfect for practical use as well as teaching children (Instruction not included)
- It can be used as a classic office calculator, an educational tool for children or a gift for abacus collectors.
