Roman Numeral Conversion Chart
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1The Rules of
Roman Numerals
1
5
10
50
100
500
1000
I
V
X
L
C
D
M
5000 10,000 50,000 100,000 500,000 1,000,000
V
X
L
C
D
M
SUBTRACTIVE RULE
We can ‘subtract’ a symbol representing a 1, 10 or 100
from the next TWO higher symbols.
Write
Instead of
For the value of
IIII
4
IV
IX
VIIII
9
XXXX
40
XL
XC
LXXXX
90
CCCC
400
CD
M
DCCCC
900
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