Ordinal numbers
Números ordinais
1st – first – primeiro
2nd – second – segundo
3rd – third – terceiro
4th – fourth – quarto
5th – fifth – quinto
6th – sixth – sexto
7th – seventh – sétimo
8th – eighth – oitavo
9th – ninth – nono
10th – tenth – décimo
11th – eleventh – décimo primeiro
12th – twelfth – décimo segundo
13th – thirteenth – décimo terceiro
14th – fourteenth – décimo quarto
15th – fifteenth – décimo quinto
16th – sixteenth – décimo sexto
17th – seventeenth – décimo sétimo
18th – eighteenth – décimo oitavo
19th – nineteenth – décimo nono
20th – twentieth – vigésimo
21st – twenty-first – vigésimo primeiro
30th – thirtieth – trigésimo
40th – fortieth – quadragésimo
50th – fiftieth – quinquagésimo
60th – sixtieth – sexagésimo
70th – seventieh – setuagésimo
80th – eightieth – octogésimo
90th – ninetieth – nonagésimo
100th – hundredth – centésimo