Răspuns :
1.
a) IX, XXIV, XIX, XXIII, LXXIV, MCM, MMXV
b) XI, XLIX, MD, MCDLVII, MCMXVIII
2.
a) 9, 32, 71, 800, 34, 163, 2000, 600, 2050
b) 1542, 2572, 1989, 1648, 400
1.a)9-IX
24-XXIV
19-XIX
23-XXIII
74-LXXIV
122-CXXII
1900-MCM
2015-MMXV
1.b)11-XI
49-XLIX
1500-MD
1457-MCDLVII
1918-MCMXVIII
2.a)IX-9
XXXII-32
LXXI-71
DCCC-800
XXXIV-34
CCLXIII-363
MM-2000
DC-600
MML-2050
B)MDXLII-1542
MMDLXXII-2572
MCMLXXXIX-1939
CD-400