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 so on, often use Roman Numerals. Have you noticed these names and wondered what the symbols represent? Those are the Roman Numerals. Earlier, people used fingers, sticks, bones, etc., to count. When life became more complex, a standard form was required 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 we use to count.
In Roman Numerals, we use CCCXXIX to represent 329, where CCC is 300, 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.
The addition method is used when the smaller number is placed after the larger number. For example, XX → X + X → 10 + 10 = 20.
To write a large number, certain Roman Numerals can be repeated up to three times. For example, CCC → 300.
If a small number is placed before a large number in Roman Numerals, we subtract the smaller number from the larger number. For example, IX → X - I → 10 - 1 = 9.
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. Similarly, 8 is written as VIII, not IIIIIIII.
Let’s now learn how to write 329 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 329 in Roman numerals using the expansion method.
To write 329 in Roman Numerals, follow these steps:
Step 1: Break the number based on place value into hundreds, tens, and ones.
For 329, we write it as 300 + 20 + 9.
Step 2: Convert each number into Roman Numerals:
Step 3: Combine the Roman Numerals together.
Therefore, 329 in Roman Numerals is CCC (300) + XX (20) + IX (9) = CCCXXIX.
When writing a large number into Roman Numerals, we group the number. To write 329 in Roman Numerals, we group 329 as 300 + 20 + 9.
So, 329 is written as CCCXXIX 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 historian finds a manuscript with the year written in Roman numerals as CCCXXIX and suspects it was from the 4th century. What is the manuscript's year in Arabic numerals?
The manuscript's year in Arabic numerals is 329.
Roman numerals are converted to Arabic numerals by adding values:
CCCXXIX = 300 + 20 + 9 = 329.
In a Roman-themed play, a character needs to distribute CCCXXIX coins among III actors equally. How many coins does each actor receive?
Each actor receives CIX coins.
To find the number of coins each actor gets, divide the total coins by the number of actors:
CCCXXIX / III = 329 / 3 = 109.
109 in Roman numerals is CIX.
An archeologist discovers two ancient artifacts marked with the numerals CC and CXXIX. Determine the combined value of the artifacts in Roman numerals.
The combined value of the artifacts is CCCXXIX.
Sum is the result of adding two numbers:
CC = 200
CXXIX = 129
200 + 129 = 329
329 in Roman Numerals is CCCXXIX.
A merchant has a ledger recording transactions in Roman numerals. If he recorded expenses of CCCXXX and income of I, what is the net loss or gain in Roman numerals?
The net loss is CCXCIX.
The difference is the result of subtracting the income from expenses:
CCCXXX = 330
I = 1
330 - 1 = 329
329 in Roman Numerals can be written as CCXCIX.
Write the Roman numeral for the sum of 250 and 79 using the expansion method.
The Roman numeral for the sum of 250 and 79 is CCCXXIX.
Step 1: Convert the numbers 250 and 79 into Roman numerals:
250 - CCL
79 - LXXIX
Add the numbers together: 250 + 79 = 329
Using expansion method: 329 = 300 + 20 + 9 = CCCXXIX.
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.