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 used. Roman numerals are utilized 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 symbols and wondered what they represent? Those are Roman numerals.
In ancient times, people counted using fingers, sticks, and bones. As life became more complex, a standardized form of counting was needed, leading to the development of the Roman numeral system. I (1), V (5), X (10), L (50), C (100), D (500), and M (1000) are the symbols used.
In Roman numerals, we use DCXXVI to represent 626, where D is 500, C is 100, X is 10, and VI is 6. 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, VI → V + I → 5 + 1 = 6
Certain Roman numerals can be repeated up to three times. III → 3.
If a smaller number precedes a larger number, it is subtracted from the larger number. For example, IX → X - I → 10 - 1 = 9
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 626 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 626 in Roman numerals using the expansion method. To write 626 in Roman numerals, follow these steps:
Step 1: Break the number based on place value (ones, tens, hundreds, etc.). For 626, we write it as 600 + 20 + 6.
Step 2: Convert each number into Roman numerals.
600 in Roman numeral - DC
20 in Roman numeral - XX
6 in Roman numeral - VI
Step 3: Combine the Roman numerals. Therefore, 626 in Roman numerals is DC + XX + VI = DCXXVI
When writing a large number in Roman numerals, we group the number. To write 626 in Roman numerals, we group 626 as 600 + 20 + 6.
600 in Roman numeral - DC
20 in Roman numeral - XX
6 in Roman numeral - VI
So, 626 is written as DCXXVI 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.
Calculate the sum of DCXXVI and LXXIV.
The sum of DCXXVI and LXXIV is DCC.
In Roman numerals, DCXXVI is 626 and LXXIV is 74. The sum of DCXXVI and LXXIV is 626 + 74 = 700. 700 in Roman numerals is DCC.
A historian finds DCCCXXVI ancient coins and wants to distribute them equally among XIII museums. How many coins will each museum receive?
Each museum will receive LXIV coins.
To find the number of coins each museum receives, divide the total number of coins by the number of museums:
DCCCXXVI = 826
XIII = 13
826 / 13 = 64 64 in Roman numerals is LXIV.
A construction company needs to install DCLXII tiles in each of IX buildings. What is the total number of tiles required?
The total number of tiles required is VCMXCVIII.
Calculate the total number of tiles by multiplying the number of tiles per building by the number of buildings:
DCLXII = 662
IX = 9
662 × 9 = 5958
5958 in Roman numerals is VCMXCVIII.
If you subtract CCCXVI from DCXXVI, what is the result in Roman numerals?
The result is CCCX.
Subtract the numbers:
DCXXVI = 626
CCCXVI = 316
626 - 316 = 310 310 in Roman numerals is CCCX.
Write the Roman numeral for 600 + 26 using the expansion method.
The Roman numeral for 600 + 26 is DCXXVI.
Step 1: Convert the numbers 600 and 26 into Roman numerals:
600 = DC
26 = XXVI
Step 2: Add them together: 600 + 26 = 626 Using the expansion method, write 626 as DCXXVI.
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.