NUMBERS:

ORDINAL NUMBERS: 

1^st: First

2^nd: Second

3^rd: Third

4^th: Fourth

5^th: Fifth

6^th: Sixth

7^th: Seventh

8^th: Eighth

9^th: Ninth 

10^th: Tenth

11^th: Eleventh

12^th: Twelfth

13^th: Thirteenth

14^th: Fourteenth

15^th: Fifteenth

16^th: Sixteenth

17^th: Seventeenth

18^th: Eighteenth

19^th: Nineteenth

20^th: Twentieth

21^st: Twenty-first

22^nd: Twenty-second

23^rd: Twenty-third

24^th: Twenty-fourth

25^th: Twenty-fifth

26^th: Twenty-sixth

27^th: Twenty-seventh

28^th: Twenty-eighth

29^th: Twenty-ninth 

30^th: Thirtieth

31^st: Thirty-first

40^th: Fortieth

50^th: Fiftieth 

60^th: Sixtieth 

70^th: Seventieth 

80^th: Eightieth 

90^th: Ninetieth

(100^th: One hundredth)