I=1
V=5
X=10
L=50
C=100
D=500
M=1000
E.G: XII would be two past ten which is 12. The same numeral cannot exceed three times in a row.
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because it's too complicated to calculate with roman numerals. eg 11 * 9 = 99 => XI * IX = XCIX
XLVII represents -10+57 = 47
Roman numerals were inspired by Etruscan numerals of which Roman numerals originated from.
Eleven in Roman numerals is XI.Eleven in Roman numerals is XI.Eleven in Roman numerals is XI.Eleven in Roman numerals is XI.Eleven in Roman numerals is XI.Eleven in Roman numerals is XI.Eleven in Roman numerals is XI.Eleven in Roman numerals is XI.Eleven in Roman numerals is XI.
1697 in roman numerals is: MDXCVII.