1 - First
2 - Second
3 - Third
4 - Fourth
5 - Fifth
6 - Sixth
7 - Seventh
8 - Eighth
9 - Ninth
10 - Tenth
11 - Eleventh
12 - Twelfth
13 - Thirteenth
14 - Fourteenth
15 - Fifteenth

16 - Sixteenth

17 - Seventeenth

18 - Eighteenth

19 - Nineteenth

20 - Twentieth

​

20 - Twentieth
21 - Twenty-first
22 - Twenty-second

23 - Twenty-third
(..)

30 - Thirtieth

31 - Thirty first

32 - Thirty two

(..)

40 - Fortieth

50 - fiftieth;

60 - sixtieth;

70 - seventieth or seventieth;

80 - eightieth;

90 - ninetieth;

100 - hundredth;

200 - two hundredth;

300 - three hundredth or three hundredth;

400 - four hundredth;

500 - five hundredth;

600 - sixty or six hundredth;

700 - seventieth or seventieth;

800 - octententieth;

900 - noningentésimo or nongentésimo;

1,000 - thousandth;

10,000 - tenth thousandth;

100,000 - one hundredth thousandth;

1,000,000 - one millionth;

1,000,000,000 - billionth;

1,000,000,000,000 - trillionth.

​

ABREVIAÇÕES

número + duas ultimas letras da palavra composta

First (1) = 1st
Second (2) = 2nd
Third (3) = 3rd
Twenty-fifth (25) = 25th

Centésimo = one hundredth = 100th
Milésimo = one thousandth = 1,000th
Milhão = one millionth = 1,000,000th