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 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, II, etc.) represented? Those are Roman Numerals.
In ancient times, people used fingers, sticks, bones, etc., to count. As life became more complex, a standard form was needed for counting. 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 DCLIII to represent 653. Here, D is 500, C is 100, L is 50, and III is 3. 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.
The addition method is used when the smaller number is placed after the larger number. For example, DCLIII → D + C + L + III → 500 + 100 + 50 + 3 = 653.
To write a large number, certain Roman Numerals can be repeated up to three times. III → 3.
Rule 3: Subtraction Method
If a small number is followed by a large number in Roman Numerals, we subtract the smaller number from the large number. For example, XL → L - X → 50 - 10 = 40.
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. For 8, we write VIII, not IIIIIIII.
Let’s now learn how to write 653 in Roman Numerals. Follow these methods to write the number in Roman Numerals:
In the expansion method, based on the place value, the number is broken down. In this section, we will learn how to write 653 in Roman numerals using the expansion method. To write 653 in Roman Numerals, follow the steps:
Step 1: Break the number based on the place value. Place value includes ones, tens, hundreds, etc. For 653, we write it as 500 + 100 + 50 + 3.
Step 2: Convert each number into Roman Numerals: 500 in Roman Numeral - D 100 in Roman Numeral - C 50 in Roman Numeral - L 3 in Roman Numeral - III
Step 3: Combine the Roman Numerals. Therefore, 653 in Roman Numerals is D (500) + C (100) + L (50) + III (3) = DCLIII.
When writing a large number into Roman Numerals, we group the number. To write 653 in Roman Numeral, we group 653 as 500 + 100 + 50 + 3.
So, 653 is written as DCLIII in Roman Numerals.
Students often make mistakes when writing a number in Roman Numerals. To master Roman Numerals, we can learn a few common mistakes and the ways to avoid them.
Calculate the difference between DCLIII and CL.
The difference between DCLIII and CL is DIII.
To find the difference, subtract the smaller number from the larger number.
DCLIII = 653
CL = 150
653 - 150 = 503
503 in Roman Numerals is DIII.
A historian finds DCLIII artifacts and wants to distribute them equally among XIII museums. How many artifacts will each museum receive?
Each museum will receive L artifacts.
To find the number of artifacts each museum gets, divide the total number of artifacts by the number of museums.
DCLIII = 653
XIII = 13
653 / 13 = 50
50 in Roman Numerals is L.
What is the sum of CCC and DCLIII?
The sum of CCC and DCLIII is CMLIII.
To find the sum, add the two numbers together.
CCC = 300
DCLIII = 653
300 + 653 = 953
953 in Roman Numerals is CMLIII.
Convert 653 into Roman Numerals using the subtraction method.
653 in Roman Numerals is DCLIII.
Using the subtraction method:
653 = 500 + 100 + 50 + 3 D = 500 C
= 100 L =
50 III = 3
Therefore, 653 in Roman Numerals is DCLIII.
If you add XLVII to DCLIII, what is the result in Roman Numerals?
The result of adding XLVII to DCLIII is DCC.
To find the sum, add the two numbers:
DCLIII = 653
XLVII = 47
653 + 47 = 700
700 in Roman Numerals is DCC.
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.