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.
Royal titles such as Henry I, Henry II, and others use Roman Numerals. Have you noticed the names and wondered what these symbols represented? Those are Roman Numerals. In ancient times, people counted using fingers, sticks, and bones. As life became complex, a standard form of counting was needed.
Ancient Romans used the Roman Numeral system for counting. The symbols I (1), V (5), X (10), L (50), C (100), D (500), and M (1000) are used in this system. In Roman Numerals, we use DXXII to represent 522, where D is 500, X is 10, 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.
The addition method is used when a smaller number is placed after a larger number. For example, DXXII → D + X + X + I + I → 500 + 10 + 10 + 1 + 1 = 522.
To write larger numbers, certain Roman Numerals can be repeated three times. For example, XXX → 30.
If a smaller number precedes a larger one in Roman Numerals, we subtract the smaller 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, 50 is written as L, not XXXXX.
Let’s now learn how to write 522 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 522 in Roman numerals using the expansion method. To write 522 in Roman Numerals, follow the steps:
Step 1: Break the number based on place value: hundreds, tens, and ones. 522 can be written as 500 + 20 + 2.
Step 2: Convert the numbers into Roman Numerals:
Step 3: Combine the Roman Numerals together. Therefore, 522 in Roman Numerals is D (500) + XX (20) + II (2) = DXXII.
When writing a large number in Roman Numerals, we group the numbers. To write 522 in Roman Numerals, we group 522 as 500 + 20 + 2.
So, 522 is written as DXXII in Roman Numerals.
Students 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 CDXXII and C.
The sum of CDXXII and C is DXXII.
To find the sum, add the two numbers.
CDXXII = 422
C = 100
422 + 100 = 522
522 in Roman Numerals is DXXII.
A historian needs to divide MXLIV ancient coins among two groups equally. Determine how many coins each group receives.
Each group receives DXXII coins.
To find the number of coins each group receives, divide the total number of coins by the number of groups.
MXLIV = 1044
1044 / 2 = 522
522 in Roman Numerals is DXXII.
Find the difference between DXXII and IV.
The difference between DXXII and IV is DXVIII.
Subtract the smaller number from the larger number.
DXXII = 522
IV = 4
522 - 4 = 518
518 in Roman Numerals is DXVIII.
Convert the sum of CCLXI and CCLXI into Roman numerals.
The sum of CCLXI and CCLXI is DXXII.
Add the two numbers together.
CCLXI = 261
261 + 261 = 522
522 in Roman Numerals is DXXII.
If a library receives DXXII new books, how many books will it have if it already had CCC books?
The library will have DCCCXXII books.
Add the existing number of books to the new books received.
CCC = 300
DXXII = 522
300 + 522 = 822
822 in Roman Numerals is DCCCXXII.
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.