Users can add, subtract, multiply, divide, find square roots and cube roots with the Chinese abacus. There are two beads on the top part and five beads on the bottom for decimals.
By summing up the beads on one rod of an abacus we obtain 15, which in Chinese tradition represents the number of the harmony of life and the universe. The Chinese abacus (, sunpn) has seven or more rods and two parts. The lower 5 beads are called earth or water beads and represent a value of 1 whilst the upper 2 beads are called heaven beads and represent a value of 5. The greater the number of rods, the more accurate the calculations. The most common shape of the abacus is the rectangle, and it is essentially an array of beads organized in a 5+2 bead combination on a single rod split by a wooden barrier. Have you ever wondered how the ancient Chinese performed calculations in their daily life? When neither calculators nor computers existed, merchants and shopkeepers performed mathematical operations, such as calculating costs, using the so-called 珠算 (zhūsuàn) method, a traditional method of performing mathematical calculations through 算盘 (suànpán), the Chinese abacus.
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