Răspuns:
Explicație pas cu pas:
DLXXIII → 573
D + LXX + III = 500 + (50+10+10)+3×1 = 500+70+3 = 573
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CCXLV → 245
CC + (XL) + V = (100+100) + (50-10) + 5 = 200+40+5 = 245
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CDLXIV = 464
= CD + LX + IV = (500-100) + (50+10) + (5-1) = 400+60+4 = 464
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CMXCIX → 999
= CM + XC + IX = (1000-100) + (100-10) + (10-1) =
= 900 + 90 + 9 =
= 999
Observație:
CM = 900
MC = 1 100
XC = 90, iar CX = 110
