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. 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 DCCXXXIV to represent 734, where D is 500, CC is 200, XXX is 30, and IV is 4.
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, DCC → D + CC → 500 + 200 = 700
To write a large number, there are certain Roman numerals that can be repeated three times. For example, XXX → 30.
If a small number is followed by a large number in Roman numerals, we subtract the smaller number from the large number. For example, IV → V - I → 5 - 1 = 4
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. For 8, we write VIII, not IIIIIIII.
Let’s now learn how to write 734 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 734 in Roman numerals using the expansion method. To write 734 in Roman numerals, follow the steps:
Step 1: Break down the number based on the place value. Place value that is ones, tens, hundreds, etc. For 734, we write it as 700 + 30 + 4
Step 2: Converting the number into Roman numerals
Step 3: Combining the Roman numerals together. Therefore, 734 in Roman numerals is DCC (700) + XXX (30) + IV (4) = DCCXXXIV
When writing a large number into Roman numerals, we group the number. To write 734 in Roman numerals, we group 734 as 700 + 30 + 4
So, 734 is written as DCCXXXIV 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.
Convert the year in which a historical event took place, DCCXXXIV, into Arabic numerals.
The year DCCXXXIV in Arabic numerals is 734.
To convert Roman numerals to Arabic numerals, we break down each component:
D = 500
CC = 200
XXX = 30
IV = 4
Adding them together: 500 + 200 + 30 + 4 = 734.
A collector has a set of DCCXXXIV coins and divides them into II equal collections. How many coins are in each collection?
Each collection contains CCCLXVII coins.
To find the number of coins per collection, divide the total number of coins by the number of collections:
DCCXXXIV = 734
II = 2
734 / 2 = 367
367 in Roman numerals is CCCLXVII.
What is the sum of DCC and XXXIV in Roman numerals?
The sum of DCC and XXXIV is DCCXXXIV.
To find the sum, add the two numbers:
DCC = 700
XXXIV = 34
700 + 34 = 734
734 in Roman numerals is DCCXXXIV.
A historian finds a manuscript marked with the Roman numeral DCCXXXIV. What is the difference in years between that and CM?
The difference between DCCXXXIV and CM is CLXVI.
First, convert the Roman numerals to Arabic numerals:
DCCXXXIV = 734
CM = 900
The difference is 900 - 734 = 166
166 in Roman numerals is CLXVI.
Express 734 using Roman numerals through the expansion method.
734 in Roman numerals is DCCXXXIV.
Breakdown 734 into components:
700 + 30 + 4
700 = DCC
30 = XXX
4 = IV
Combine them: DCC + XXX + IV = DCCXXXIV.
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.