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Mathematics 7 Online
OpenStudy (anonymous):

what is CXXIV ( roman numerals ) converted to american numbers

jimthompson5910 (jim_thompson5910):

C = 100 X = 10, so XX = 10+10 = 20 I = one V = five, so IV = 5-1 = 4 which means... CXXIV = 100+20+4 = 124

OpenStudy (jamesj):

Um, American numbers? They're called Arabic numerals. Arabic, yes. They invented it.

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