Răspuns :
LXXIX, CXXIII, DCLXXXIV, CMXLV, LXIV, CCCLVIII, MCCLXXVI, MMMDCCCIV, XV, CXXXVII, MMDCV, MCMXCII
"Scrie cu cifre romane numerele :79, 123, 684, 945, 64, 358, 1276, 3804, 15, 137, 2605, 1992"
REZOLVARE :
79 =L +X +X +IX =LXXIX
123 =C +X+X+III =CXXIII
684 =D +C +L +X +X +X +IV =DCLXXXIV
945 =CM +XL +V =CMXLV
64 =L +X +IV =LXIV
358 =C +C +C +L +V +III =CCCLVIII
1276 =M +C +C +L +X +X +VI =MCCLXXVI
3804 =M +M +M +D +C +C +C +IV =MMMDCCCIV
15 =X +V =XV
137 =C +X +X +X +V +I +I =CXXXVII
2605 =M +M +D +C +V =MMDCV
1992 =M +CM +XC +II =MCMXCII
REȚINEM :
M =1.000
D =500
C =100
L =50
XL =40 (L - X =50 - 10 =40)
X =10
CM =900 (M - C =1000 - 100 =900)
CD =400 (D - C =500 - 100 =400)
DC =600 (D +C =500 +100 =600)
