What are the two methods of actually adding together 19 29 and 52 using only Roman numerals?

Answer 1

c

Additional Information:-

Under today's rules we would convert 19 and 29 into Roman numerals as XIX and XXIX which makes any form of interaction between other numerals quite difficult.

But there is evidence to suggest that the Romans themselves would have actually worked out the equivalent of 19 and 29 as XVIIII and XXVIIII then simplified them to IXX and IXXX which uses less numerals but of equal value thus making addition quicker and simpler as follows:-

IXX+IXXX = IIL (20-1)+(30-1) = (50-2)

IIL+LII = C (50-2)+52 = 100

Alternatively:-

XVIIII+XXVIIII = XXXXVIII (19+29 = 48)

XXXXVIII+LII = C (48+52 = 100)

Roman numerals: M=1000, D=500, C=100, L=50, X=10, V=5 and I=1

Remember that: 5*I=V, 2*V=X, 5*X=L, 2*L=C, 5*C=D and 2*D=M

Quod Erat Demonstrandum