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How would you evaluate 49 plus 19 in two different ways and 49 minus 19 in two different ways showing all four calculations entirely in Roman numerals with explanations?
Wiki User
∙ 9y ago
In today's modern conversion of Roman numerals 49 and 19 are now considered to be XLIX and XIX respectively but the ancient Romans would have probably worked out the above as follows:-
IL+IXX = LXVIII => (50-1)+(20-1) = 68
XXXXVIIII+XVIIII = LXVIII => 49+19 = 68
IL-IXX = XXX => (50-1)-(20-1) = 30
XXXXVIIII-XVIIII => 49-19 = 30
For more complicated calculations the Romans would use an abacus calculating device.
Wiki User
∙ 9y ago
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