I
1
II
2
III
3
IV
4
V
5
VI
6
VII
7
VIII
8
IX
9
X
10
XX
20
XXX
30
XL
40
L
50
LX
60
LXX
70
LXXX
80
XC
90
C
100
D
500
M
1000

How to calculate with more Roman numbers?

MC = 1100 because 1000 + 100

MM = 2000 because 1000 + 1000

XV = 15 because 10 + 5

XIV = 14 because 10 + (5 - 1)

MD = 1500 because 1000 + 500

MCM = 1900 because 1000 + (1000 - 100)

CD = 400 because 500 - 100

SOME EXERCISES

MCMXCII =

CCLXXII =

CDXLVI =

MCMXCVIII =

MCMXCX =

MDCXLVI =

MCMXCXI =

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