1.
A) CCLX= 260
CD= 400
XCIX= 99
LXXXIV= 84
CCIX= 209
↗️84, 99, 209, 260, 400
↗️LXXXIV, XCIX, CCIX, CCLX, CD
B) CCCLIX= 359
MDLXIX= 1569
MCMLXXVIII=1978
DCCCLXXXIX= 889
↗️359, 889, 1569, 1978
↗️CCCLIX, DCCCLXXXIX, MDLXIX, MCMLXXVIII
2.
a) 2009=MMIX
b) 11= XI
c) 2017= MMXVII
3.
a) CIX, CXI
b) CDIV, CDVI, DCIV, DCVI
c) CXL, CLX
Sper ca am ajutat! Succes!