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How would you calculate 19 plus 9 in two different ways and 19 minus 9 in two different ways but working out all four calculations entirly in Roman numerals with explanations?
Wiki User
∙ 9y ago
The modern way of expressing 19 in Roman numerals is now XIX but the ancient Romans would have expressed it as IXX or as XVIIII because their equivalent Latin words are 'undeviginti' and 'novemdecim' respectively but there is no Latin equivalent for XIX and thus it logically follows that:-
IXX+IX = XXVIII => (20-1)+(10-1) = 28
XVIIII+VIIII = XXVIII => 19+9 = 28
IXX-IX = X => (20-1)-(10-1) = 10
XVIIII-VIIII = X => 19-9 = 10
Remember that in mathematics --I = +I and that the above calculations can be considered to be mental arithmetic but for more serious calculations the Romans would have used an abacus calculating device.
QED
Wiki User
∙ 9y ago
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How would you actually add together 1666 and 1999 in two different ways entirely in Roman numerals throughout both calculations with explanations?
See answer to question: ' How do you add together 1666 and 1999 in two different ways using Roman numerals'
How would you work out 1776 plus 549 in two different ways and 1776 minus 549 in two different ways but working out all four calculations entirely in Roman numerals with explanations?
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How would you calculate 9.5 plus 8.5 in two different ways and 9.5 minus 8.5 in two different ways but calculating all four calculations completely in Roman numerals with explanations?
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How would you work out 1776 plus 9 in two different ways and 1776 minus 9 in two different ways but working out all four calculations entirely in Roman numerals with explanations?
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What is mccxxix in Hindu Arabic numerals?
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How would you calculate 1149 plus 19 in two different ways and 1149 minus 19 in two different ways but showing all work and answers using only Roman numerals with satisfactory explanations?
Save yourself the trouble and convert the numbers to arabic numbers (the numbers we usually use).
How did they use roman numerals in calculations?
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How would you add together 51 plus 49 in two different ways and 51 minus 49 in two different ways but showing all calculations entirely in Roman numerals with explanations?
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How would you correctly calculate 52 plus 49 and 52 minus 49 but working out both calculations entirely in Roman numerals with explanations?
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How would you calculate 1776 plus 1449 and 1776 minus 1449 but showing both calculations worked out entirely in Roman numerals with explanations?
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