Last updated on May 26th, 2025
Roman numerals are a way of expressing numbers using symbols. I, V, X, L, C, D, and M are the symbols we use. Roman Numerals are used in royal titles, book names, sequences, and so on. Here we will be discussing Roman Numerals, rules, and examples.
The royal titles, such as Henry I, Henry II, and so on, use Roman numerals. Have you noticed the names and wondered what these symbols (I, II) represented? Those are the Roman Numerals. Earlier, people used to count using fingers, sticks, bones, etc. When life became complex, a standard form was required to count. Ancient Romans used the Roman Numeral system to count. I (1), V (5), X (10), L (50), C (100), D (500), and M (1000) are the symbols we use to count.
In Roman Numerals, we use CCVI to represent 206, where C is 100, another C is 100, V is 5, and I is 1. Let’s learn more about Roman numerals and how we write them.
There are certain basic rules to write a number in Roman Numerals. In this section, let’s discuss some basic rules that need to be remembered when writing a number in Roman numerals.
Rule 1: Addition Method
The addition method is used when the smaller number is placed after the larger number. For example, VI → V + I → 5 + 1 = 6
Rule 2: Repetition Method
To write a large number, there are certain Roman Numerals that can be repeated up to three times. For example, CCC → 300.
Rule 3: Subtraction Method
If a small number is followed by a large number in Roman Numerals, we subtract the smaller number from the larger number. For example, XL → L - X → 50 - 10 = 40
Rule 4: Limitation Rule
The symbols cannot be repeated more than three times, and some symbols like V, L, and D cannot be repeated. For example, we won't write VV for 10; instead, we use X, and 8 is written as VIII, not IIIIIIII.
Let’s now learn how to write 206 in Roman Numerals. Follow these methods to write the number in Roman Numerals.
- By Expansion Method
- By Grouping Method
In the expansion method, based on the place value, the number is broken down. In this section, we will learn how to write 206 in Roman numerals using the expansion method.
To write 206 in Roman Numerals, follow the steps:
Step 1: The number is broken down based on place value: ones, tens, hundreds, etc.
For 206, we write it as 200 + 6.
Step 2: Converting the number into Roman Numerals:
- 200 in Roman Numerals — CC
- 6 in Roman Numerals — VI
Step 3: Combining the Roman Numerals together:
Therefore, 206 in Roman Numerals is CC (200) + VI (6) = CCVI
When writing a large number into Roman Numerals, we group the number.
To write 206 in Roman Numerals, we group 206 as 200 + 6.
- 200 in Roman Numerals — CC
- 6 in Roman Numerals — VI
So, 206 is written as CCVI in Roman Numerals.
Students make mistakes when writing a number in Roman Numerals. To master Roman Numerals, we can learn a few common mistakes and ways to avoid them.
Calculate the quotient of CDXII divided by II.
The quotient of CDXII divided by II is CCVI.
In Roman numerals, CDXII is 412 and II is 2. The quotient of CDXII divided by II is 412 ÷ 2 = 206. 206 in Roman Numerals can be written as CCVI.
A librarian has DCCCXII books and wants to arrange them equally on IV shelves. Find out how many books will be on each shelf.
The number of books on each shelf is CCVI.
To find the number of books per shelf, we divide the total number of books by the total number of shelves. DCCCXII = 812 and IV = 4. Therefore, DCCCXII ÷ IV = 812 ÷ 4 = 203. 203 in Roman numerals can be written as CCIII.
Find the sum of CLXXVI and XXX.
The sum of CLXXVI and XXX is CCVI.
Sum is the result of adding two numbers. CLXXVI = 176 and XXX = 30. The sum is 176 + 30 = 206. 206 in Roman Numerals is CCVI.
What is the difference between CCXVI and X?
The difference between CCXVI and X is CCVI.
The difference of two numbers is the value we get when subtracting the second number from the first. CCXVI = 216 and X = 10. 216 - 10 = 206. 206 in Roman Numerals can be written as CCVI.
Write the Roman Numeral for 150 + 56 using the expansion method.
The Roman for 150 + 56 is CCVI.
Step 1: First convert the numbers 150 and 56 into Roman numerals.
150 - CL
56 - LVI
Add the numbers together: 150 + 56 = 206. Using expansion method: 206 = 200 + 6 = CCVI.
Hiralee Lalitkumar Makwana has almost two years of teaching experience. She is a number ninja as she loves numbers. Her interest in numbers can be seen in the way she cracks math puzzles and hidden patterns.
: She loves to read number jokes and games.