Last updated on May 26th, 2025
Roman numerals are a way of expressing numbers using symbols. The symbols we use are I, V, X, L, C, D, and M. Roman numerals are used in royal titles, book names, sequences, and more. Here, we will discuss Roman numerals, rules, and examples.
Royal titles, such as Henry I, Henry II, and so on, use Roman numerals. Have you noticed these names and wondered what these symbols (I and II) represent? Those are Roman numerals. Earlier, people used fingers, sticks, bones, etc., to count. As life became more complex, a standard form was required. Ancient Romans used the Roman numeral system to count. We use I (1), V (5), X (10), L (50), C (100), D (500), and M (1000) to count.
In Roman numerals, we use CCXXIX to represent 229. Here, CC is 200, XX is 20, and IX is 9. 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, XX → X + X → 10 + 10 = 20.
Rule 2: Repetition Method
To write a large number, certain Roman numerals can be repeated up to three times. For example, CCC → 300.
Rule 3: Subtraction Method
If a smaller number is followed by a larger number in Roman numerals, we subtract the smaller number from the larger one. For example, IX → X - I → 10 - 1 = 9.
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 don't write VV for 10; instead, we use X. Similarly, we write VIII for 8, not IIIIIIII.
Let’s now learn how to write 229 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 229 in Roman numerals using the expansion method.
To write 229 in Roman numerals, follow these steps:
Step 1: Break the number based on place value. Place values are ones, tens, hundreds, etc.
For 229, we write it as 200 + 20 + 9.
Step 2: Convert the numbers into Roman numerals.
200 in Roman numerals — CC
20 in Roman numerals — XX
9 in Roman numerals — IX
Step 3: Combine the Roman numerals together.
Therefore, 229 in Roman numerals is CC (200) + XX (20) + IX (9) = CCXXIX.
When writing a large number in Roman numerals, we group the number.
To write 229 in Roman numerals, we group 229 as 200 + 20 + 9.
200 in Roman numerals — CC
20 in Roman numerals — XX
9 in Roman numerals — IX
So, 229 is written as CCXXIX 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.
A sculptor is creating CCXXIX small statues to display in XIX galleries. How many statues will each gallery receive?
Each gallery will receive XII statues.
To find the number of statues each gallery will receive, divide the total number of statues by the number of galleries:
CCXXIX = 229
XIX = 19
Therefore, 229 / 19 = 12.
12 in Roman numerals is XII.
Calculate the sum of CC and XXIX.
The sum of CC and XXIX is CCXXIX.
Sum is the result of adding two numbers:
CC = 200
XXIX = 29
200 + 29 = 229
229 in Roman numerals is CCXXIX.
Thus, the sum of CC and XXIX is CCXXIX.
An architect plans to allocate CCLVIII bricks evenly across XI sections of a wall. How many bricks will each section receive?
Each section will receive XXIII bricks.
Divide the total number of bricks by the number of sections:
CCLVIII = 258
XI = 11
258 / 11 = 23
23 in Roman numerals is XXIII.
So, each section will receive XXIII bricks.
Find the difference between CCXXX and I.
The difference between CCXXX and I is CCXXIX.
The difference is the result of subtracting one number from another:
CCXXX = 230
I = 1
230 - 1 = 229
229 in Roman numerals is CCXXIX.
The difference between CCXXX and I is CCXXIX.
Write the Roman Numeral for 229 + 31 using the expansion method.
The Roman numeral for 229 + 31 is CCLX.
Step 1: Convert the numbers 229 and 31 into Roman numerals:
229 - CCXXIX
31 - XXXI
Add the numbers together: 229 + 31 = 260
Using the expansion method: 260 = 200 + 50 + 10 = CCLX
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.