How to Read Roman Numerals
The Basics...
The digits used:
| I | = | 1 |
| V | = | 5 |
| X | = | 10 |
| L | = | 50 |
| C | = | 100 |
| D | = | 500 |
| M | = | 1000 |
And so...
If a large number is followed by small number: ADD
If a small number is followed by larger number: SUBTRACT the smaller from larger
If a number is followed by number of equal value: ADD
Examples:
| I | = | 1 | |
| II | = | 2 | (1+1) |
| III | = | 3 | (1+1+1) |
| IIII or IV | = | 4 | (1+1+1+1) or (5-1) |
| V | = | 5 | |
| VI | = | 6 | (5+1) |
| VII | = | 7 | (5+1+1) |
| VIII | = | 8 | (5+1+1+1) |
| IX | = | 9 | (10-1) or (5+1+1+1+1) |
| X | = | 10 | |
| XI | = | 11 | (10+1) |
| XIX | = | 19 | (10+(10-1)) |
| XX | = | 20 | (10+10) |
| XXX | = | 30 | (10+10+10) |
| XXXX or XL | = | 40 | (10+10+10+10) or (50-10) |
| L | = | 50 | |
| LX | = | 60 | (50+10) |
| LXX | = | 70 | (50+10+10) |
| LXXX | = | 80 | (50+10+10+10) or (4x20) |
| LXXXX or XC | = | 90 | (50+10+10+10+10) or (100-10) |
| XCIX | = | 99 | ((100-10)+(10-1)) or ((4x20)+10+(10-1)) |
| C | = | 100 | |
| CI | = | 101 | (100+1) |
| CC | = | 200 | (100+100) |
| CCC | = | 300 | (100+100+100) |
| CCCC | = | 400 | (100+100+100+100) or (4x100) |
| D | = | 500 | |
| DC | = | 600 | (500+100) |
| M | = | 1000 | |
| MDCCCCLXXXV or MCMLXXXV | = | 1985 | (1000+500+100+100+100+100+50+10+10+10+5) or (1000+(1000-100)+50+10+10+10+5) |
| MM | = | 2000 | (1000+1000) |
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The Ravenstead household is dedicated to studying the arts and sciences of the Norse culture during the “Viking Era” (700-1066 AD) and re-enacting the lifestyle of that era in our encampments.