How to express the number 10 in China?

A horizontal line on the left and an empty line on the right indicate 10.

In the counting method of counting, the number of units is represented by vertical lines and horizontal lines, 1-5 is represented by the corresponding array number of vertical lines and horizontal lines, and 6-9 is displayed on the basis of the above calculation and the corresponding calculation is added below.

When representing multiple numbers, use vertical mode to represent numbers, horizontal mode to represent decimals, vertical mode to represent hundreds, and horizontal mode to represent thousands. By analogy, this counting method follows the decimal system.

According to Sun Tzu's calculation, the calculation method and counting method are: the calculation method here, first know its position, one vertical and ten horizontal, one thousand vertical, one thousand pairs, one thousand and so on. Shu Jing said after Yang Xia: At least six or more, five at the top. Six does not accumulate, and five does not accumulate.

Extended data

According to historical records and archaeological data, ancient fortune-telling is actually a small wooden stick with the same length and thickness, generally, it is 13 to 14cm long and 0.2 to 0.3 cm in diameter, mainly made of bamboo. It is also made of wood, animal bones, ivory, metal and other materials. About 270 yuan is packed in a cloth bag and tied around the waist.

When you need to count and calculate, just take it out and put it on the table or on the ground. In the history of Chinese mathematics, they have made great contributions, and their inventions have experienced a long historical development process.

References:

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