Roman numerals and Arabic numbers were on some occasions written differently than the present day ones and were difficult to interpret.

Over time these Arabic numbers have steadily replaced the roman numerals.
The Arabic numbers could be understood from the context of the record and by comparing with other numbers available in the record.
Numbers on a later date were sometimes linked together.
Roman numerals were sometimes used in mentioning calender dates.

In all there are seven alphabets which are used as numbers better known as Roman numerals.

These letters could be used alone or in various combinations; and these letters are I, V, X, L, C, D and M.

Roman numerals are the number systems used long ago.
This system uses the letters which we are using in our present day counting systems.

The digits we use everyday stand alone or side by side to show certain values.

The letters standing individually gives us values such as:
I = 1
V= 5
X = 10
L = 50
C = 100
D = 500
M = 1,000

Roman Numerals is also called as the 'Ancient Rome' of number systems and is used to signify the values by combining letters from the Latin alphabet.
It does not include a zero and the cousin of Etruscan numerals.
It is an old technique which was later modified in the middle age.
In the Roman numeral system, letters represent numbers.
Roman numerals are frequently seen in early American documents and may also be found in printed sources.
These roman numerals are either written in capital or small letters.
The roman numerals 4 and 9 are written by placing a symbol of lesser value before one of greater value and so 4 would be written as IV and 9 as IX.

Let us try some examples for complex roman numerals.

1646 would be written as MDCXLVI
1751 as MDCCLI
1866 would be written as MDCCCLXVI
1917 of the Julian calendar would be represented as MCMXVII
1775 would be represented as MDCCLXXVI

Let us try out some combinations which we use every day.

To write one, we would make use of the first letter of the roman numeral.
One = I
Two = II
Three = III

In case we need to write four we have to make sure the roman numeral for I is written on the left of V and this in a way signifies that we have one less than five.
Four = IV
Five = V

In case we need to write six we have to make sure that the roman numeral I is used after V signifying that one more is added to five.
Six = VI
Seven = VII
Eight = VIII

After eight the next number is nine for which we must again use the Roman numeral X which stands alone for ten.
To symbolize ten we have to follow the same method and use I before X to signify that the value is one less than ten and so this makes nine.
Nine = IX
Ten = X

Below is the Roman Numerals Chart for numbers 1-10

Roman Numerals 1 to 10

Below is a chart for Roman Numeral between numbers 1-100. This system is based on seven letters which are used as numbers called as Roman numerals. Here we use five letters out of seven letters for the numbers 1-100.

Roman Numerals 1 to 100

Write the place values (ones, tens, hundreds, and thousand…) for the given number and then write each in turn.

Example for Roman Numeral Conversion


Write 1989 as roman numerals.

Solution:

Step 1: We can write 1989 as 1000 + 900 + 80 + 9
Step 2: Now, convert each number into it’s roman numeral form:
1000 = M
900 = CM
80 = LXXX
9 = IX
Step 3: So, 1989 = MCMLXXIX

Here are some examples on roman numerals

Example 1:

Write 604 as a roman numeral.

Solution:
Step 1: We can write 604 as 600 + 4
Step 2: Now, convert each number into its corresponding roman numeral:
600 = DC
4 = IV
Step 3: So, 604 = DCIV


Example 2:

Write 7039 as a roman numeral.

Solution:
Step 1: We can write 7039 as 7000 + 30 + 9
Step 2: Now, convert each number into its corresponding roman numeral:
7000 = MMMMMMM
30 = XXX
9 = IX
Step 3: So, 7039 = MMMMMMMXXX IX


Example 3:

Write 856 as a roman numeral.

Solution:
Step 1: We can write 856 as 800 + 50 + 6
Step 2: Now, convert each number into its corresponding roman numeral:
800 = DCCC
50 = L
6 = VI
Step 3: So, 856 = DCCCLVI


Example 4:

Write 4376 as a roman numeral.

Solution:
Step 1: We can write 4376 as 4000 + 300 + 70 + 6
Step 2: Now, convert each number into its corresponding roman numeral:
4000 = MMMM
300 = CCC
70 = LXX
6 = VI
Step 3: So, 856 = MMMMCCCLXX VI


Example 5:

Write 950 as a roman numeral.

Solution:
Step 1: We can write 950 as 900 + 50
Step 2: Now, convert each number into its corresponding roman numeral:
900 = CM
50 = L
Step 3: So, 950 = CML

Here are some practice problems on roman numerals:

1) Write 4,505 as a Roman Numeral.
2) Write 2,627 as a Roman Numeral.
3) Write 741 as a Roman Numeral.
4) Write 848 as a Roman Numeral.