The above numbers converted into Roman numerals are IX, XC, M, CM and XI respectively and the Romans would have probably added them up in the following fashion:-
IX+XC = IC
IC+M = IMC
IMC+CM = IMM
IMM+XI = MMX
Hindu-Arabic conversion:-
9+90 = 99
99+1000 = 1099
1099+900 = 1999
1999+11 = 2010
For more complicated calculations the Romans would have used an abacus counting device.
I would convert them back into Hindu-Arabic numerals, do the addition and then convert the answer to Roman numerals.
The date 05-05-2010 in Roman numerals would be V.V.MMX
Nowadays 04.09.2014 converted into Roman numerals are IV.IX.MMXIV but the ancient Romans would have notated them quite differently
January 18, 2014 is written as XVIII.I.MMXIV in Roman numerals.
The M represents 1000 and the C is 100. This would convert to MCCXXVII in Roman numerals.
I would convert them back into Hindu-Arabic numerals, do the addition and then convert the answer to Roman numerals.
The date 05-05-2010 in Roman numerals would be V.V.MMX
The year 2012 in Roman numerals would be written as MMXII. The RapidTables website has a converter that can be used to convert standard numbers in to Roman numerals.
Nowadays 04.09.2014 converted into Roman numerals are IV.IX.MMXIV but the ancient Romans would have notated them quite differently
January 18, 2014 is written as XVIII.I.MMXIV in Roman numerals.
In Roman numerals 522 would be DXXII.In Roman numerals 522 would be DXXII.In Roman numerals 522 would be DXXII.In Roman numerals 522 would be DXXII.In Roman numerals 522 would be DXXII.In Roman numerals 522 would be DXXII.In Roman numerals 522 would be DXXII.In Roman numerals 522 would be DXXII.In Roman numerals 522 would be DXXII.
The M represents 1000 and the D is 500. This would convert to MMMCDLV in Roman numerals.
The M represents 1000 and the D is 500. This would convert to MMMCDLXXXV in Roman numerals.
The M represents 1000 and the L is 50. This would convert to MMCCLVI in Roman numerals.
The M represents 1000 and the C is 100. This would convert to MCCXXVII in Roman numerals.
The M represents 1000 and the V is 5. This would convert to MMMIV in Roman numerals.
M represents 1000, L is 50, X is 10 and C is 100. This would convert to MCMLXVIII.