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La abreviatura de los números ordinales se forma con el número en cifra seguido por las últimas dos letras de la palabra completa. Las decenas, millares y el millón se unen con un guión o “ and ”, al igual que los números cardinales. 20th (twentieth), 23rd (twenty-third), 31st (thirty-first)….
A Cardinal Number is a number that says how many of something there are, such as one, two, three, four, five. An Ordinal Number is a number that tells the position of something in a list, such as 1st, 2nd, 3rd, 4th, 5th etc.
Ordinal Numbers. We use ordinal numbers to talk about the "order" of things or to define a thing's position in a series. Note that after the numeral or digit, we write the last two letters of the word. For example, we take the last two letters of first and add them to the digit 1 to make 1st.
When expressed as figures, the last two letters of the written word are added to the ordinal number: first = 1st. second = 2nd. third = 3rd. fourth = 4th. twenty-sixth = 26th. hundred and first = 101st.
The number 13 is the sixth prime number. It is a twin prime with 11, as well as a cousin prime with 17. It is the second Wilson prime, of three known (the others being 5 and 563 ), [2] and the smallest emirp in decimal. [3] 13 is: The second star number: [4] The third centered square number:
One, two, three … are cardinal numbers. First, second, third … are ordinal numbers. Ordinal numbers normally show the order or sequence of something or someone. You can normally create ordinal numbers by adding -TH to the end of a cardinal number.
The ordinal for the number 37 is thirty-seventh (37th), which is used to describe a person or thing in position number 37 of a sequence. For example, Meera got the 37th rank in her final exam. Test your knowledge on Ordinal numbers
