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. 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 CDLXVIII to represent 468. Here, CD is 400, LX is 60, and VIII is 8. 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, VIII → V + I + I + I → 5 + 1 + 1 + 1 = 8
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 is written as VIII, not IIIIIIII.
Let’s now learn how to write 468 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 468 in Roman numerals using the expansion method. To write 468 in Roman Numerals, follow the steps:
Step 1: The number is broken based on the place value. Place values are ones, tens, hundreds, etc. For 468, we write it as 400 + 60 + 8
Step 2: Converting the number into Roman Numerals 400 in Roman Numeral — CD 60 in Roman Numeral — LX 8 in Roman Numeral — VIII
Step 3: Combining the Roman Numerals together. Therefore, 468 in Roman Numeral is CD (400) + LX (60) + VIII (8) = CDLXVIII
When writing a large number into Roman Numerals, we group the number. To write 468 in Roman Numerals, we group 468 as 400 + 60 + 8
So, 468 is written as CDLXVIII 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 discovers a document marked CDXLVIII and adds it to another document marked CC. What is the total value of these documents in Roman numerals?
The total value is DCLXVIII.
CDXLVIII is 448 and CC is 200.
The total value is 448 + 200 = 648.
In Roman numerals, 648 is DCLXVIII.
An archaeologist finds CDXLVIII ancient coins and divides them equally among XLII researchers. How many coins does each researcher receive?
Each researcher receives XI coins.
To find the number of coins each researcher receives, divide the total number of coins by the number of researchers.
CDXLVIII = 448
XLII = 42.
Therefore, 448 / 42 = 10.67, which rounds down to XI in whole coins.
A collector has CDXLVIII rare stamps and acquires another CXX stamps. How many stamps does the collector have in total?
The collector has DLXVIII stamps in total.
The initial number of stamps is CDXLVIII, which is 448, and the collector acquires an additional CXX, which is 120.
The total is 448 + 120 = 568. In Roman numerals, 568 is DLXVIII.
A puzzle contains a clue that subtracts CLX from CDXLVIII. What is the result in Roman numerals?
The result is CCLXXXVIII.
The value of CDXLVIII is 448 and CLX is 160.
The difference is 448 - 160 = 288.
In Roman numerals, 288 is CCLXXXVIII.
A scholar writes an equation: CDXLVIII minus XLI plus XXXIII. What is the result?
The result is CCCCXL.
First, solve the equation step by step:
CDXLVIII = 448,
XLI = 41,
XXXIII = 33.
Calculate 448 - 41 = 407,
add 33: 407 + 33 = 440.
In Roman numerals, 440 is CCCCXL.
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.