1 one first

2 two second

3 three third

4 four fourth

5 five fifth

6 six sixth

7 seven seventh

8 eight eighth

9 nine ninth

10 ten tenth 11eleven eleventh 12twelve twelfth 13threeteen threeteenth 14fourteen fourteenth 15fifteen fifteenth 16sixteen sixteenth 17seventeen seventeenth 18eighteen eighteenth 19nineteen nineteenth 20twenty twentieth 21twenty-one twenty-first 22twenty-two twenty-second 30thirty thirtieth 40forty fourtieth 50fifty fiftieth 60sixty sixtieth 70seventy seventieth 80eighty eightieth 90ninety ninetieth