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 LXVII to represent 67, here L is 50, X is 10, V is 5, and II is 2. 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.
Rule 1: Addition Method
The addition method is used when the smaller number is placed after the larger number. For example, LXVII → L + X + V + I + I → 50 + 10 + 5 + 1 + 1 = 67
Rule 2: Repetition Method
To write a large number, there are certain Roman numerals that can be repeated up to three times. For example, III → 3.
Rule 3: Subtraction Method
If a small number is followed by a large number in Roman numerals, we subtract the smaller number from the larger number. For example, IX → X - I → 10 - 1 = 9
Rule 4: Limitation Rule
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 67 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 67 in Roman numerals using the expansion method.
To write 67 in Roman numerals, follow the steps:
Step 1: The number is broken based on the place value: tens and ones.
For 67, we write it as 50 + 10 + 5 + 2
Step 2: Converting the number into Roman numerals
50 in Roman numerals — L
10 in Roman numerals — X
5 in Roman numerals — V
2 in Roman numerals — II
Step 3: Combining the Roman numerals together.
Therefore, 67 in Roman numerals is L (50) + X (10) + V (5) + II (1+1) = LXVII
When writing a large number into Roman numerals, we group the numbers.
To write 67 in Roman numerals, we group 67 as 50 + 10 + 5 + 2
50 in Roman Numerals — L
10 in Roman Numerals — X
5 in Roman Numerals — V
2 in Roman Numerals — II
So, 67 is written as LXVII in Roman numerals.
Students make mistakes when writing numbers in Roman numerals. To master Roman numerals, we can learn a few common mistakes and the ways to avoid them.
A historian is cataloging LXVII ancient artifacts and wants to distribute them equally among XIII museums. How many artifacts will each museum receive?
Each museum will receive V artifacts.
To find the number of artifacts each museum gets, we divide the total number of artifacts by the number of museums.
LXVII = 67
XIII = 13
Therefore, 67 / 13 = 5 with a remainder (not needed for this calculation).
5 in Roman numerals can be written as V.
Calculate the sum of XL and XXVII using Roman numerals.
The sum of XL and XXVII is LXVII.
Adding numbers is the process of finding their total.
XL = 40
XXVII = 27
40 + 27 = 67
67 in Roman numerals is LXVII.
A merchant has CLXXXI coins and gives away CXIV coins. How many coins does he have left?
The merchant has LXVII coins left.
To find how many coins are left, subtract the number of coins given away from the total.
CLXXXI = 181
CXIV = 114
181 - 114 = 67
67 in Roman numerals is LXVII.
Write the Roman numeral for the expression (L - III) + XX using the expansion method.
The Roman numeral is LXVII.
Step 1: Convert the numbers in the expression to Roman numerals:
L = 50
III = 3
XX = 20
Step 2: Evaluate the expression:
(50 - 3) + 20 = 47 + 20 = 67
Step 3: Convert the result to Roman numerals using the expansion method:
67 = 50 + 10 + 5 + 2 = LX + V + II = LXVII.
A sculptor needs to create LXVII identical statues and has completed XXV so far. How many more does he need to make?
The sculptor needs to create XLII more statues.
To find out how many more statues need to be made, subtract the number completed from the total.
LXVII = 67
XXV = 25
67 - 25 = 42
42 in Roman numerals is XLII.
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.