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Last updated on February 21st, 2025
Roman numerals are a way of expressing numbers using symbols. The symbols we use are I, V, X, L, C, D, and M. Roman numerals are used in royal titles, book names, sequences, and more. 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 fingers, sticks, bones, etc., to count. As life became more complex, a standard form was required for counting. Ancient Romans used the Roman numeral system to count. The symbols I (1), V (5), X (10), L (50), C (100), D (500), and M (1000) are used for counting.
In Roman Numerals, we use CCXVI to represent 216, where CC is 200, X is 10, and VI is 6. 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, XVI → X + V + I → 10 + 5 + 1 = 16
Rule 2: Repetition Method
To write a large number, there are certain Roman numerals that can be repeated up to three times. For example, CCC → 300.
Rule 3: Subtraction Method
If a small number precedes a large number in Roman numerals, we subtract the smaller number from the large 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 for 8, we write VIII, not IIIIIIII.
Let’s now learn how to write 216 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 216 in Roman numerals using the expansion method.
To write 216 in Roman numerals, follow these steps:
Step 1: Break the number based on the place value. Place values are ones, tens, hundreds, etc.
For 216, we write it as 200 + 10 + 6.
Step 2: Convert the number into Roman numerals.
200 in Roman Numerals — CC
10 in Roman Numerals — X
6 in Roman Numerals — VI
Step 3: Combine the Roman numerals together.
Therefore, 216 in Roman Numerals is CC (200) + X (10) + VI (6) = CCXVI
When writing a large number into a Roman numeral, we group the numbers.
To write 216 in Roman numerals, we group 216 as 200 + 10 + 6.
200 in Roman Numerals — CC
10 in Roman Numerals — X
6 in Roman Numerals — VI
So, 216 is written as CCXVI in Roman numerals.
If you multiply CXVIII by II, what is the result in Roman numerals?
A historian has CCCLXXXIV ancient coins and wants to distribute them evenly among XVIII collectors. How many coins will each collector receive?
Add the Roman numerals CLX and LVI. What is the sum?
What is the difference between CCXXX and XIV?
Write the Roman numeral for 108 + 108 using the expansion method.
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.