This week we will be learning Roman Numerals and their Latin names, so that later this month we can learn how to write dates in Latin using Roman months, ordinal numbers, and dates. But first things first, how many of you can read the numbers on this clock?

Well, there are

five rules to remember when making numerical values with Roman Numeral:

Symbol | Value |

I | 1 |

V | 5 |

X | 10 |

L | 50 |

C | 100 |

D | 500 |

M | 1,000 |

1. A lesser numeral placed before another numeral represent

subtraction.
- I placed before V and X make 4 (IV) and 9 (IX)
- X placed before L and C make 40 (XL) and 90 (XC)
- C placed before D and M make 400 (CD) and 900 (CM) according to the same pattern
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2. Conversely, a lesser numeral placed after another numeral represent

addition
- I placed after V and X make 6(VI) and 11(XI)
- X placed after L and C make 60 (LX) and 110 (CX)
- C placed after a D and M make 600 (DC) and 1,100 (MC)

3. No numeral will ever be used more than

three consecutive times[ sometimes it is seen in older Latin texts, but this is rare]

- 4(IV) and 40(XL) will NEVER be written IIII or XXXX
- 400 (CD) will NEVER be CCCC

4. For number over 3,999 (MMMCMXCIX); an unique rule is used:

ANY NUMBER WITH A BAR OVER IT, IS EQUIVALENT TO THAT NUMBER TIMES 1,000
- 5(V) with a bar over V means 5 times 1,000 which equals 5,000 ()
- 10 (X) with a bar over it will be 10,000 ()
- 100 (C) with a bar over it will be 100,000 ()
- 1,000 (M) with a bar over it will be a 1,000,000 ()

**NUMBERS 1-100**
An earlier blog post already addressed ALL the numbers from 1-100; which can be seen

here. But for review, let’s look at some basics:

Number | Latin numerals | Pronunciation |

0 | | nihil |

1 | I | ūnus |

2 | II | duo |

3 | III | trēs |

4 | IV | quattuor |

5 | V | quīnque |

6 | VI | sex |

7 | VII | septem |

8 | VIII | octō |

9 | IX | novem |

10 | X | decem |

Well, now that you know some numbers from 1-100; it should quite simple for the hundreds.

**NUMBERS 100-1,000**
Number | Latin numerals | Cardinal Number |

100 | C | centum |

200 | CC | ducenti, ducentae, ducenta |

300 | CCC | trecenti, trecentae, trecenta |

400 | CD | quadrigenti, quadrigentae, quadrigenta |

500 | D | quingenti, quingentae, quingenta |

600 | DC | sescenti, sescentae, sescenta |

700 | DCC | septingenti, septingentae, septingenta |

800 | DCCC | octingenti, octingentae, octingenta |

900 | CM | nongenti, nongentae, nongenta |

1,000 | M | mille |

For a closer look at the declensions (masculine, feminine, and neuter) of the tens, hundreds, and one thousand; please visit

here and

here.

**NUMBERS 1,000- 1,000,000**
*Remember the “Bar Rule:” As, X = 10, BUT

= 10,000

Number | Latin numerals | Cardinal Number |

1,000 | M | mille |

5,000 | | quīnque milia |

10,000 | | decem milia |

50,000 | | quinquaginta milia |

90,000 | | nonaginta milia |

100,000 | | Centum milia |

300,000 | | tre centa millia |

500,000 | | quingenta milia |

750,000 | | septingentos-quinquaginta-milia |

1,000,000 | | Deciec centena milia |

*Please note that the number would be consecutively touching and there would be no spaces in between. This is merely a formatting problem.

If you are still having problem with convert into Roman Numeral refer to

here for additional help and support.

Hope this helps any beginners of Latin or Roman Numerals!

DCLXVI

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