Last updated on May 26th, 2025
Roman numerals are a way of expressing numbers using symbols. The symbols I, V, X, L, C, D, and M are used to represent different values. Roman numerals are often used in royal titles, book names, sequences, and more. Here we will be discussing Roman numerals, rules, and examples.
Royal titles, such as Henry I, Henry II, and so on, often use Roman numerals. Have you noticed these names and wondered what the symbols (I and II) represented? Those are Roman numerals. In ancient times, people counted using fingers, sticks, and bones.
As life became more complex, a standard form was needed for counting. Ancient Romans used the Roman numeral system for this purpose. I (1), V (5), X (10), L (50), C (100), D (500), and M (1000) are the symbols used in Roman numerals.
In Roman numerals, we use CCCLXXII to represent 372. Here, CCC is 300, L is 50, XX is 20, and II is 2. 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 a smaller number is placed after a larger number. For example, CCCLXXII → CCC + L + XX + II → 300 + 50 + 20 + 2 = 372.
Rule 2: Repetition Method
To write large numbers, certain Roman numerals can be repeated up to three times. For example, CCC → 300.
Rule 3: Subtraction Method
If a smaller number is placed before a larger number in Roman numerals, it is subtracted from the larger number. For example, IX → X - I → 10 - 1 = 9.
Rule 4: Limitation Rule
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.
Let’s now learn how to write 372 in Roman numerals. Follow these methods to write the number in Roman numerals.
In the expansion method, based on place value, the number is broken down. In this section, we will learn how to write 372 in Roman numerals using the expansion method.
To write 372 in Roman numerals, follow these steps:
Step 1: Break the number based on place value. Place values are ones, tens, hundreds, etc.
For 372, we write it as 300 + 70 + 2.
Step 2: Convert the number into Roman numerals.
- 300 in Roman numerals — CCC
- 70 in Roman numerals — LXX
- 2 in Roman numerals — II
Step 3: Combine the Roman numerals together.
Therefore, 372 in Roman numerals is CCC (300) + LXX (70) + II (2) = CCCLXXII.
When writing a large number in Roman numerals, we group the number.
To write 372 in Roman numerals, we group 372 as 300 + 70 + 2.
- 300 in Roman numerals — CCC
- 70 in Roman numerals — LXX
- 2 in Roman numerals — II
So, 372 is written as CCCLXXII in Roman numerals.
Students often make mistakes when writing numbers in Roman numerals. To master Roman numerals, we can learn a few common mistakes and ways to avoid them.
Find the sum of CLXXXVI and CLXXXVI.
The sum of CLXXXVI and CLXXXVI is CCCLXXII.
In number terms, CLXXXVI is 186. The sum of CLXXXVI and CLXXXVI is 186 + 186 = 372. 372 in Roman Numerals can be written as CCCLXXII.
A historian found a crate containing DCCXLIV ancient coins, which he wants to evenly distribute among II historians. How many coins will each historian receive?
Each historian will receive CCCLXXII coins.
To find the number of coins each historian receives, divide the total number of coins by the number of historians.
DCCXLIV = 744
II = 2
Therefore, DCCXLIV / II = 744 / 2 = 372.
372 in Roman numerals is CCCLXXII.
Calculate the difference between CCCC and XXVIII.
The difference between CCCC and XXVIII is CCCLXXII.
The difference of two numbers is the result of subtracting one from the other.
CCCC = 400
XXVIII = 28
400 - 28 = 372
372 in Roman Numerals can be written as CCCLXXII.
If a sculptor creates CCCLXXII statues over a period of III years, how many statues does he create per year?
The number of statues created per year is CXXIV.
Divide the total number of statues by the number of years to find how many are made per year.
CCCLXXII = 372
III = 3
Therefore, CCCLXXII / III = 372 / 3 = 124.
124 in Roman numerals is CXXIV.
Write the Roman Numeral for 200 + 172 using the expansion method.
The Roman for 200 + 172 is CCCLXXII.
Step 1: First convert the numbers 200 and 172 into Roman numerals.
200 - CC
172 - CLXXII
Add the numbers together: 200 + 172 = 372
Using expansion method: 372 = 300 + 70 + 2 = CCCLXXII.
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.