# Ordinal Numbers

## Introduction

We use ordinal numbers to say the date or to put things into order.

## The Ordinal Numbers

1^{st} |
first | 11^{th} |
eleventh | 21^{st} |
twenty-first | 31^{st} |
thirty-first |

2^{nd} |
second | 12^{th} |
twelfth | 22^{nd} |
twenty-second | 40^{th} |
fortieth |

3^{rd} |
third | 13^{th} |
thirteenth | 23^{rd} |
twenty-third | 50^{th} |
fiftieth |

4^{th} |
fourth | 14^{th} |
fourteenth | 24^{th} |
twenty-fourth | 60^{th} |
sixtieth |

5^{th} |
fifth | 15^{th} |
fifteenth | 25^{th} |
twenty-fifth | 70^{th} |
seventieth |

6^{th} |
sixth | 16^{th} |
sixteenth | 26^{th} |
twenty-sixth | 80^{th} |
eightieth |

7^{th} |
seventh | 17^{th} |
seventeenth | 27^{th} |
twenty-seventh | 90^{th} |
ninetieth |

8^{th} |
eighth | 18^{th} |
eighteenth | 28^{th} |
twenty-eighth | 100^{th} |
one hundredth |

9^{th} |
ninth | 19^{th} |
nineteenth | 29^{th} |
twenty-ninth | 1000^{th} |
one thousandth |

10^{th} |
tenth | 20^{th} |
twentieth | 30^{th} |
thirtieth | 1,000,000^{th} |
one millionth |

## Writing the Ordinal Numbers

To write ordinal numbers we just add *th* to the number:

- Example:
- four – fourth
- eleven – eleventh

### Exceptions

- one – first
- two – second
- three – third
- five – fifth
- eight – eighth
- nine – ninth
- twelve – twelfth

In larger numbers, we only change the last numeral to an ordinal number:

- Example:
- 421
^{st}= four hundred and twenty-first - 5,011
^{th}= five thousand and eleventh

### Numerals

To turn numerals into ordinal numbers we add the last two letters of the written number to the numeral.

- fir
*st*= 1^{st} - seco
*nd*= 2^{nd} - thi
*rd*= 3^{rd} - four
*th*= 4^{th} - twenty-six
*th*= 26^{th} - a/one hundred and fir
*st*= 101^{st}

## Usage

**Date: **We use ordinal numbers to say the date.

- Example:
- Today is the
*eleventh*of June. - The concert is on the the
*seventeenth*of January.

**Order and lists: **We use ordinal numbers to put things in an order or when making lists/enumerations.

- Example:
- We live on the
*fifteenth*floor. *First*, wash the rice.*Second*, put it in a saucepan.*Third*, add water.*Fourth*, cook for 10 minutes.

**Titles: **In titles (e.g. kings and queens), ordinal numbers are written as Roman numerals. In Spoken English, we add the definite article before the ordinal number:

- Example:
- Charles II – Charles the Second
- Edward VI – Edward the Sixth
- Henry VIII – Henry the Eighth

### Roman Numerals

Symbol | I | II | III | IV | V | VI | VII | VIII | IX | X |
---|---|---|---|---|---|---|---|---|---|---|

Value | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |