Pages

▼

April 15, 2014

Ordinal Numbers

Thematic Vocabulary Unit Nº 36 Version 0.5


   Main Definition

The number designating place in an ordered sequence
  1. 1st  (first)
  2. 2nd (second)
  3. 3rd  (third)

   Abbreviations

Are formed with the figure number followed by the last two letters of the word complete.

  1. 1st (first)
  2. 2nd (second)
  3. 3rd (third)
  4. 4th (fourth)
  5. 9th (nineth)
  6. 20th (twentieth)
  7. 23rd (twenty-third)

  Endings

By putting the number only, add the completion of this, it will always be-th, except first, “st”, second “nd” and third “rd”.
  1.                1st  (first)
  2.               2nd  (second)
  3.               3rd  (third)
  4.               4th  (fourth)
  5.               5th  (fifth)
  6.               6th  (sixth)
  7.               7th  (seventh)
  8.               8th  (eighth)
  9.               9th  (nineth)
  10.             10th  (tenth)
  11.             11th  (eleventh)
  12.             12th  (twelfth)
  13.             13th  (thirteenth)
  14.             14th  (fourteenth)
  15.             15th  (fifteenth)
  16.             16th  (sixteenth)
  17.             17th  (seventeenth)
  18.             18th  (eighteenth)
  19.             20th  (twentieth)
  20.             30th  (thirtieth)
  21.             40th  (fortieth)
  22.             80th  (eightieth)
  23.           100th  (hundredth)
  24.        1,000th  (thousandth)
  25. 1,000,000th  (millionth) 


Ordinal Compounds

When written in words, are joined with a hyphen as cardinal numbers, but all units have the ending “th”):
  1. sixtie-eighth (68)
  2. twenty-fifth (25)
  3. fourty-ninth (49)

       Reference List

  1.    1st (first)
  2.   2nd (second)
  3.   3rd (third)
  4.   4th (fourth)
  5.   5th (fifth)
  6.   6th (sixth)
  7.   7th (seventh)
  8.   8th (eighth)
  9.   9th (nineth)
  10. 10th (tenth)
  11. 11th (eleventh)
  12. 12th (twelfth)
  13. 13th (thirteenth)
  14. 14th (fourteenth)
  15. 15th (fifteenth)
  16. 16th (sixteenth)
  17. 17th (seventeenth)
  18. 18th (eighteenth)
  19. 19th (nineteenth)
  20. 20th (twentieth)
  21. 21st (twenty-first)
  22. 22nd (twenty-second)
  23. 23rd (twenty-third)
  24. 24th (twenty-fourth)
  25. 25th (twenty-fifth)
  26. 26th (twenty-sixth)
  27. 27th (twenty-seventh)
  28. 28th (twenty-eighth)
  29. 29th (twenty-ninth)
  30. 30th (thirtieth)
  31. 31st (thirty-first)
  32. 30th (thirtieth)
  33. 40th (fortieth)
  34. 50th (fiftieth)
  35. 60th (sixtieth)
  36. 70th (seventieth)
  37. 80th (eightieth)
  38. 90th (ninetieth)
  39. 100th (hundredth)
  40. 101st (hundred and first)
  41. 200th (two hundredth)
  42. 1.000th (thousandth)
  43. 10.000th (ten thousandth)
  44. 100.000th (hundred thousandth)
  45. 1.000.000th (millionth)

             Examples

  1.      21st  (twenty-first)
  2.     22nd  (twenty-second)
  3.     23rd   (twenty-third)
  4.    101st  (hundred and first)
  5.    421st  (four hundred and twenty-first )
  6. 2,111th  (two thousand, one hundred and eleventh)