Question

Scrie numerele de mai jos cu cifre arabe mdccxxxviii,xiv,cccxxviii,mdxlii,mcccxccix,cxxvii,mclvi

Answer 1

MDCCXXXVIII = 1 738

M + D + C + C + X + X + X + V + III = 1 000 + 500 + 100 + 100 +30 + 5 + 3

XIV = 14

X + IV = 10 + ( 5 - 1 ) = 10 + 4 = 14

CCCXXVIII = 328

CCC + XX + V + III = 300 + 20 + 5 + 3 = 328

MDXLII = 1 542

M + D + XL + II = 1000 + 500 + ( 50 - 10 ) + 2 = 1 542

MCCCXCIX = 1 399

M + CCC + XC + IX = 1 000 + 300 + ( 100 - 10 ) + ( 10 - 1 ) = 1 399

CXXVII = 127

C + XX + VII = 100 + 20 + 7 = 127

MCLVI = 1 156

M + C + L + VI = 1 000 + 100 + 50 + 6 = 1 156