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 the Roman Numerals.
Earlier people used to count using fingers, sticks, bones, etc. to count earlier. 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 CDLXIV to represent 464, where C is 100, D is 500, L is 50, X is 10, I is 1, and V is 5. 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; then it is the addition method. For example, VI → V + I → 5 + 1 = 6
To write a large number, there are certain Roman Numerals that can be repeated three times. III → 3.
If a small number is followed by a large number in Roman Numerals, we subtract the smaller number from the large number; it is a subtraction method. 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, and 8 we write as VIII, not IIIIIIII.
Let’s now learn how to write 464 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 464 in Roman numerals using the expansion method. To write 464 in Roman Numerals, follow the steps:
Step 1: Break the number based on the place value. Place value includes ones, tens, hundreds, etc. For 464, we write it as 400 + 60 + 4
Step 2: Converting the number into Roman Numerals 400 in Roman Numeral — CD 60 in Roman Numeral — LX 4 in Roman Numeral — IV
Step 3: Combine the Roman Numerals together. Therefore, 464 in Roman Numeral is CD (400) + LX (60) + IV (4) = CDLXIV
When writing a large number into Roman Numeral, we group the number. To write 464 in Roman Numeral, we group 464 as 400 + 60 + 4
So, 464 is written as CDLXIV 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.
A historian finds CDL books in a library archive and needs to add XIV newly discovered manuscripts. How many books are there in total?
The total number of books is CDLXXIV.
The total number of books is the sum of CDL and XIV.
CDL = 450
XIV = 14
450 + 14 = 464
464 in Roman Numerals can be written as CDLXXIV.
An ancient coin collector has a collection comprising of CD coins, and he decides to add an additional LXIV coins to his collection. How many coins does he have now?
The collector now has CDLXIV coins.
The total number of coins is the sum of CD and LXIV.
CD = 400
LXIV = 64
400 + 64 = 464
464 in Roman Numerals can be written as CDLXIV.
A museum exhibition has CCCXC paintings and plans to showcase LXXIV more. What will be the total number of paintings displayed at the exhibition?
The total number of paintings is CDLXIV.
The total number of paintings is the sum of CCCXC and LXXIV.
CCCXC = 390
LXXIV = 74
390 + 74 = 464
464 in Roman Numerals is CDLXIV.
A scribe writes down CDLX pages and later removes IV pages that contain errors. How many pages remain?
The number of pages that remain is CDLX.
The number of pages that remain is the difference of CDLX and IV.
CDLX = 460
IV = 4
460 - 4 = 456
456 in Roman Numerals can be written as CDLVI.
Calculate the difference between D and XXXVI, and express it in Roman Numerals.
The difference between D and XXXVI is CDLXIV.
The difference of two numbers is obtained by subtracting one from the other.
D = 500
XXXVI = 36
500 - 36 = 464
464 in Roman Numerals can be written as CDLXIV.
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.