Introduction to Roman numerals:
Roman numerals are a numerals system of ancient Rome based on letters of the alphabet, which are combined to signify the sum (or in some cases, the difference) of their numbers. The first ten Roman numerals are as follows:
I, II, III, IV, V, VI, VII, VIII, IX, and X.
In this be article we are going to learn Roman numerals properly. (Source: Wikipedia)
Learn Roman numerals properly:
All Roman numerals should be formed by combining the symbols that the Romans used.
That is I , V , X , L , and C are the letters used as Roman numerals.
Learning rules of Roman numerals properly:
In order to learn Roman numerals properly the best way is to start from the rules.
Rule 1:
Add that number if one or more letters are placed subsequent to another letter of greater number.
Examples are:
III = 1+1+1 = 3
VIII = 5+1+1+1 = 8
Rule 2:
Subtract that number if a letter is placed previous to another letter of greater number.
Examples are:
IV = 4 (5-1 = 4)
XC = 90 (100-10 =90)
XLI = 41 (50-10+1 = 41)
Rule 3:
We should only subtract exponents of 10 (I = 100, X = 101, C = 102)
Examples are:
IX = 9 (10-1 = 9)
XL = 40 (50-10 =40)
CD = 400 (500-100 = 400)
Rule 4:
We shouldn’t subtract more than 1 number from another number.
XXXVIII = 38 (10+10+10 + 5 + 1 + 1 + 1 = 18)
We shouldn’t write 38 as IIXXXX.
Learning example problems for Roman numerals properly:
Learning problem 1:
Write 7 in decimal number.
Solution:
The given decimal number can be written as 7 = 5+1+1
Note that the numbers given must be splitted only with the fundamental numerals I , V , X , L , C , D , M
Therefore 7 = 5+1+1
V I I
Where V indicates decimal number 5
I indicate decimal number 1
In roman numerals 7 can be written as VII.
Learning problem 2:
Write 19 in decimal number
Solution:
The given decimal number can be written as 19 = 10+(10-1)
Therefore 19 = 10+(10-1)
Where X indicates decimal number 10
I indicate decimal number 1
In roman numerals 19 can be written as XIX.
Learning problem 3:
Write 44 in decimal number
Solution:
The given decimal number can be written as 44 = (50-10)+(5-1)
Therefore 44 = 50+(5-1)
Where L indicates decimal number 50
X indicates decimal number 10
V indicates decimal number 5
I indicate decimal number 1
In roman numerals 44 can be written as XLIV.
Roman numerals are a numerals system of ancient Rome based on letters of the alphabet, which are combined to signify the sum (or in some cases, the difference) of their numbers. The first ten Roman numerals are as follows:
I, II, III, IV, V, VI, VII, VIII, IX, and X.
In this be article we are going to learn Roman numerals properly. (Source: Wikipedia)
Learn Roman numerals properly:
All Roman numerals should be formed by combining the symbols that the Romans used.
That is I , V , X , L , and C are the letters used as Roman numerals.
Learning rules of Roman numerals properly:
In order to learn Roman numerals properly the best way is to start from the rules.
Rule 1:
Add that number if one or more letters are placed subsequent to another letter of greater number.
Examples are:
III = 1+1+1 = 3
VIII = 5+1+1+1 = 8
Rule 2:
Subtract that number if a letter is placed previous to another letter of greater number.
Examples are:
IV = 4 (5-1 = 4)
XC = 90 (100-10 =90)
XLI = 41 (50-10+1 = 41)
Rule 3:
We should only subtract exponents of 10 (I = 100, X = 101, C = 102)
Examples are:
IX = 9 (10-1 = 9)
XL = 40 (50-10 =40)
CD = 400 (500-100 = 400)
Rule 4:
We shouldn’t subtract more than 1 number from another number.
XXXVIII = 38 (10+10+10 + 5 + 1 + 1 + 1 = 18)
We shouldn’t write 38 as IIXXXX.
Learning example problems for Roman numerals properly:
Learning problem 1:
Write 7 in decimal number.
Solution:
The given decimal number can be written as 7 = 5+1+1
Note that the numbers given must be splitted only with the fundamental numerals I , V , X , L , C , D , M
Therefore 7 = 5+1+1
V I I
Where V indicates decimal number 5
I indicate decimal number 1
In roman numerals 7 can be written as VII.
Learning problem 2:
Write 19 in decimal number
Solution:
The given decimal number can be written as 19 = 10+(10-1)
Therefore 19 = 10+(10-1)
Where X indicates decimal number 10
I indicate decimal number 1
In roman numerals 19 can be written as XIX.
Learning problem 3:
Write 44 in decimal number
Solution:
The given decimal number can be written as 44 = (50-10)+(5-1)
Therefore 44 = 50+(5-1)
Where L indicates decimal number 50
X indicates decimal number 10
V indicates decimal number 5
I indicate decimal number 1
In roman numerals 44 can be written as XLIV.
