1, Chinese lowercase numbers: one, two, three, four, five, six, seven, eight, nine;

2. Capital figures in China: zero, one, two, three, four, five, six, seven, eight and nine;

3. Arabic numerals: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9;

4. Roman numerals use seven Roman letters as numerals, namely I (1), X( 10), C (100), M (1000), V (5), L(50) and D.

Extended data:

1, look-up table of rounding and uppercase and lowercase numbers

Arabic numerals: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100.

Figures in China: ten, twenty/read, thirty, forty, fifty, sixty, seventy, eight, 911.

Chinese lowercase numbers: 10, 20/20, 30/30, 40/30, 50/60/ circle, 70/ inch, 80/ dry, 90/ foot, 100.

2. Roman numerals

(1) The same number is linked, and the number represented is equal to the number obtained by adding these numbers, such as Ⅲ = 3;

(2) The decimal is on the right side of a large number, which means that the number is equal to the number obtained by adding these numbers, such as ⅷ = 8, =12;

(3) Small numbers (limited to I, X, C) are on the left of big numbers, and the numbers represented are equal to the numbers obtained by subtracting big numbers, such as Ⅳ = 4 and Ⅶ = 9;

(4) Draw a horizontal line above a number, indicating that the number has increased by 1 000 times, such as? =5000。

References:

Baidu Encyclopedia Entry-chinese numerals