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How would you tot up 89.5 79.5 19 and 14 in Roman numerals giving step by step instructions and clear reasons for your answer?
Wiki User
∙ 13y ago
Because of gradual changes over the past centuries the way we write out Roman numerals today to represent a quantity is different to the way that the Romans actually did themselves.
But there is evidence to suggest that the Romans would have probably wrote out the above numerals in a simplified form of SXC, SXXC, IXX and IXV because:-
SXC is a simplification of LXXXVIIIIS (-10.5+100 = 89.5)
SXXC is a simplification of LXXVIIIIS (-20.5+100 = 79.5)
IXX is a simplification of XVIIII (-1+20 = 19)
IXV is a simplification of XIIII (-1+15 = 14)
Simplification is obtained by placing equal values to both sides of the numerals but in opposite directions. They then would have probably added them up in the following manner:-
SXC+SXXC = ICLXX (169)
ICLXX+IXX = IIXCC (188)
IIXCC+IXV = CCII (202)
In his reference book about ancient numeracy systems entitled "History of Mathematics" volume 2 by David Eugene Smith first published in 1925 and ISBN 0486 204 308 examples are given that the Romans would sometimes simplify their numeracy system in the above manner. Presumably this was done in order to use less numerals for a given value.
Roman numerals: M=1000, D=500, C=100, L=50, X=10, V=5, I=1 and S=1/2
Wiki User
∙ 13y ago
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Why were roman numerals invented?
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What is the Roman numerals for 27?
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Why were Roman numerals introduced?
For exactly the same reasons why we still need numbers today.
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For exactly the same reasons why we need numbers today.
What inspired the roman numerals?
Roman numerals were inspired by Etruscan numerals of which Roman numerals originated from.
How do you I write Roman number 11?
Eleven in Roman numerals is XI.Eleven in Roman numerals is XI.Eleven in Roman numerals is XI.Eleven in Roman numerals is XI.Eleven in Roman numerals is XI.Eleven in Roman numerals is XI.Eleven in Roman numerals is XI.Eleven in Roman numerals is XI.Eleven in Roman numerals is XI.
Why are the Roman numerals important to the Romans?
For exactly the same reasons why numbers are stillimportant to us today.
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How do you write 522 in Roman?
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Do roman numerals have a special significance?
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