Roman Numerals - Ancient Rome - Roman Numbers
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Roman Numerals

The Romans used several different systems for writing numbers. Sometimes they wrote numbers like this: I II III IV V and other times they used the Greek numbers. Roman people didn't always write numbers the same way, either - people knew what you meant even if you did it a little differently. Here's a table showing all of the Roman numerals.

I
1
                   
L
50
II
2

C
100
III
3

D
500
IV (or IIII)
4

M
1000
V
5



VI
6



VII
7



VIII
8



IX (or VIIII)
9



X
10



So MMIII is 2003, and XXIV is 24, and CLVII is 157. (Putting a bigger number like V after a smaller number like I means "1 less than 5" or 4).

Try writing these numbers in Roman numbers (see the second page for the answers):

314

26

1975

2010

Bibliography and further reading about Roman numbers:

Indian numbers
More about Roman Numbers
Roman Science
Ancient Rome
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Karen Carr is Associate Professor Emerita, Department of History, Portland State University. She holds a doctorate in Classical Art and Archaeology from the University of Michigan. Follow her on Instagram, Pinterest, or Twitter, or buy her book, Vandals to Visigoths.
Karen Carr is Associate Professor Emerita, Department of History, Portland State University. She holds a doctorate in Classical Art and Archaeology from the University of Michigan. Follow her on Instagram or Twitter, or buy her book, Vandals to Visigoths.
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