Professional 20 cm Digital 13-Column Soroban Calculator - Educational Tool
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Category: abacus math

About this item
- 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
- 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.
- 1. It was a dark and stormy night.
- 2. The cat sat on the mat.
- 3. She wore a red dress.
- 4. He drove a blue car.
- 5. The sun set in the west.
- 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




















