XL meaning: -10+50 = 40
LXXXIII
CXLVI
The answer is LXXIX
It is MMXXX
MMMMMMMMMXCIX is 9099 in roman numerals
XXX is the Roman numeral for 30. XL is the Roman numeral for 40.
It is: 200 = CC
365 = CCCLXV
XL (40)
In todays notation of Roman numerals: MCMXLVIII
In todays notation of Roman numerals: (XVI)CDLXXXVII
X-VIII-XI