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Ordinal numbers
This document lists ordinal numbers from 1st to 100th in words and provides examples of how ordinal numbers are used for dates and fractions. Ordinal numbers are used to indicate the position in a list, like 20th September 2012 for the date. For most fractions, the ordinal number is used in words, such as 1/2 is referred to as a half and 1/3 as a third.
Ordinal numbers
- 1.
- 2.
- 3.
- 4.
- 5. 4th FOURTH 5th FIFTH 6th SIXTH 7th SEVENTH 8th EIGHTH 9th NINTH 10th TENTH
- 6. 11th ELEVENTH 12th TWELFTH 13th THIRTEENTH 14th FOURTEENTH 15th FIFTEENTH 16th SIXTEENTH 17th SEVENTEENTH 18th EIGHTEENTH 19th NINETEENTH
- 7. 20th TWENTIETH 21st TWENTY-FIRST 22nd TWENTY-SECOND 23rd TWENTY-THIRD 24th TWENTY-FOURTH (…)
- 8. 30th THIRTIETH 40thFORTIETH 50th FIFTIETH 60th SIXTIETH 70th SEVENTIETH 80th EIGHTIETH 90th NINETIETH
- 9. 100th ONE HUNDREDTH 1000thONE THOUSANDTH (…)
- 10. We use ordinalnumbers:
- 11. FOR DATES: 20th September 2012 (the twentieth of September twenty-twelve)
- 12. FOR MOST FRACTIONS: ½ A HALF 1/3 A THIRD ¼ A QUARTER 1/5 A FIFTH
- 13. FOR MOST FRACTIONS: 1/10 A TENTH 1/100 A HUNDREDTH 3/1000 THREE THOUSANDTHS 1/5 A FIFTH