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The Roman numeral system was developed in ancient Rome and was used throughout the empire . In this system using some capital letters to represent numbers . Currently, the Roman numeral system is used to write the numbers of the centuries , the chapters of a book , the names of popes , kings and emperors , etc .
In the next chart you can see a list of Roman numerals with their corresponding decimal number :
Roman | Decimal |
I | 1 |
V | 5 |
X | 10 |
L | 50 |
C | 100 |
D | 500 |
M | 1.000 |
The Roman numerals are added . To the left of the letters are placed higher value , and right points of lesser value . For example :
VI = 6
XV = 15
LX = 60
The letters M , C , X , I can repeat and put up three consecutive times. The letters D , L , V can also be placed on the right , but only once . For example :
III = 3
VII = 7
XII = 12
XXIII = 23
If we place a one-time M , C , X , I left a bill of higher value, the first value , rather than add , subtract . For example :
IX = 9
XC = 90
CM = 900
The letters D , L , V can not be placed on the left to subtract .
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