The sum of Roman numerals LV
Answers
Answer:
What are Roman Numerals?
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Roman numerals are the letters on the left, which are used for writing natural numbers.
On this page the (standard-) rules are described, which are (were?) taught in German schools.
Examples: LXIV=64, CCXXVI=226, CM=900, CMXCVIII=998 or MDCCXII=1712
You don't find the words Roman numbers in an encyclopedia or a reference book of mathematics. Otherwise you could think that the Romans had their own numbers and didn't use the natural numbers. Obviously Roman numbers mean the way of writing a number. - On the other hand you must not be too exact in number names. A number like MDCCXII is called a Roman number and is understood as that.
I say this because google.com e.g. finds many web sites only with the string "roman numbers".
Values of Roman Numerals top
Each numeral has a certain value:
I=1 V=5 X=10 L=50 C=100 D=500 M=1000.
You can keep the values in your mind as follows.
>V is the upper half of X
>C stands for centum=100, known from centimeter=cm
>L is the lower half of C, if you have some imagination
>M stands for mille=1000, known from millimeter=mm
>D is the right half of (I), an old writing of 1000
You must not think that the numerals developed this way in former times.
Conversions top
From the Roman to the Decimal System
First you look at numbers which are written in Roman numerals in decreasing values. There is always a numeral with a smaller value on the right side of a numeral. This is a number like MCCXII.
In this case you must only add the values: MCCXII = M+C+C+X+I+I = 1212.
Sometimes there are numbers with a numeral of a smaller value on the left side. This happens twice in CMXLVIII. Here you calculate the differences CM=M-C=1000-100=900 and XL=L-X=50-10=40 first and then you add:
CMXLVIII = CM+XL+V+I+I+I = 900+40+5+1+1+1=948
Answer:
The answer is 55..
Hope it will helps you