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.
The royal titles, such as Henry I, Henry II, and so on. Have you noticed the names and wondered what these symbols (I and II) represented? Those are Roman numerals. Earlier people used to count using fingers, sticks, bones, etc., to count. When life became complex, a standard form was required to count.
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 DCCXLIX to represent 749, where D is 500, CC is 200, XL is 40, 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, VI → V + I → 5 + 1 = 6.
Certain Roman numerals can be repeated up to three times. For example, CCC → 300.
If a smaller number is placed before a larger 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 DD for 1000; instead, we use M.
Let’s now learn how to write 749 in Roman numerals. Follow these methods to write the number in Roman numerals.
In the expansion method, based on place value, the number is broken down. In this section, we will learn how to write 749 in Roman numerals using the expansion method. To write 749 in Roman numerals, follow these steps:
Step 1: Break the number based on place value: hundreds, tens, and ones. For 749, we write it as 700 + 40 + 9.
Step 2: Convert each part into Roman numerals:
Step 3: Combine the Roman numerals together. Therefore, 749 in Roman numerals is DCC (700) + XL (40) + IX (9) = DCCXLIX.
When writing a large number in Roman numerals, we group the number. To write 749 in Roman numerals, we group 749 as 700 + 40 + 9:
So, 749 is written as DCCXLIX in Roman numerals.
Students 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.
If a treasure chest contains DCCXLIX gold coins and is to be divided equally among VII pirates, how many coins does each pirate receive?
Each pirate receives CVII coins.
To find out how many coins each pirate gets, divide the total number of coins by the number of pirates.
DCCXLIX = 749
VII = 7
749 / 7 = 107
107 in Roman numerals is CVII.
A historian finds an old parchment that mentions a meeting held in the year DCCXLIX. How many years ago was that from the year MMXXIII?
The meeting was held MCCLXXIV years ago.
To find how many years ago the meeting was held, subtract 749 from 2023.
2023 - 749 = 1274
1274 in Roman numerals is MCCLXXIV.
A collector has a collection of CDXLV and CCCIV antique coins. What is the total number of coins in Roman numerals?
The total number of coins is DCCXLIX.
To find the total number of coins, add CDXLV and CCCIV.
CDXLV = 445
CCCIV = 304
445 + 304 = 749
749 in Roman numerals is DCCXLIX.
A merchant sold DCCXLIX bales of silk in VII months. What was the average number of bales sold per month?
The average number of bales sold per month is CVII.
To find the average, divide the total number of bales by the number of months.
DCCXLIX = 749
VII = 7
749 / 7 = 107
107 in Roman numerals is CVII.
Translate the sum of CCCXCIV and CCCLV into Roman numerals.
The sum of CCCXCIV and CCCLV is DCCXLIX.
To find the sum, add CCCXCIV and CCCLV.
CCCXCIV = 394
CCCLV = 355
394 + 355 = 749
749 in Roman numerals is DCCXLIX.
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.