Inglés – Los números ordinales

Primero, segundo y tercero son así:

1 st   first

2 nd  second

3rd   third

La abreviatura de los números ordinales se forma con el número en cifra seguido por las últimas dos letras de la palabra completa: 1st (first), 2nd (second), 3rd (third), 20th (twentieth), 23rd (twenty-third)…

Del cuarto al decimoavo tienen la terminación -th:

4th fourth
5th fifth
6th sixth
7th seventh
8th eighth
9th ninth
10th tenth
11th eleventh
12th twelfth
13th thirteenth
14th fourteenth
15th fifteenth
16th sixteenth
17th seventeenth
18th eighteenth

Las decenas, millares y el millón también tienen la terminación -th:

Para los números 20th, 30th, 40th, 50th, 60th, 70th, 80th y 90th (la terminación suena como)

20th twentieth
30th thirtieth
40th fortieth
80th eightieth
100th hundredth
1000th thousandth
1.000.000th millionth

Las decenas se unen con un guión al igual que los números cardinales, pero las unidades tienen la terminación -th, menos first que termina en -st, second que termina en -nd, y third que termina en -rd.

21st twenty-first
22nd twenty-second
23rd twenty-third
24th twenty-fourth

Números ordinales

1st first
2nd second
3rd third
4th fourth
5th fifth
6th sixth
7th seventh
8th eighth
9th ninth
10th tenth
11th eleventh
12th twelfth
13th thirteenth
14th fourteenth
15th fifteenth
16th sixteenth
17th seventeenth
18th eighteenth
19th nineteenth
20th twentieth
21st twenty-first
22nd twenty-second
30th thirtieth
40th fortieth
50th fiftieth
60th sixtieth
70th seventieth
80th eightieth
90th ninetieth
100th hundredth
101st hundred and first
200th two hundredth
1.000th thousandth
10.000th ten thousandth
100.000th hundred thousandth
1.000.000th millionth

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