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What is ordinal number?
Original words: one, two, three, four, five, six, seven, eight, nine, ten, eleven, twenty, thirteen, fourteen, five, sixteen, seventeen, eight, nine.

Ordinal number:

No. 1 first 1 second, second, third, third and third.

Fourth, fourth, fifth, fifth, sixth, sixth, sixth.

Seventh seventh seventh eighth ninth ninth ninth.

No.65438 +00 No.65438 +00 No.65438 +065438+01

No 65438 +03 No 65438 +03 No 65438 +04 No 65438 +04 No 65438+04 No 65438 +05 No 65438 +05 No 5.

No.65438 +06 16 16 No.65438 +07No. 10/7 No.65438 +08 No.8 +08

No 19 19 19 No.20 No.20 No.20 No.20

Extended data

Numerals in English are mainly divided into cardinal numbers and ordinal numbers. The so-called cardinal number is mathematically understood as a number with comparable size. Primitive words in English are used to describe the quantity of things. Therefore, the definition of cardinality is: the number describing the number of things is called cardinality.

Ordinal number is a kind of numeral, which is mainly mentioned in English grammar and expressed as "which number" in Chinese. In addition, when describing your date of birth, you will also use ordinal numbers in your birthday. For example: May 1 day (May 5 1)