Table Of Contents
Last updated on February 21st, 2025
Roman numerals are a method of expressing numbers using symbols. The symbols used are I, V, X, L, C, D, and M. 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. 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 CCXXXIII to represent 233, here CC is 200, XXX is 30, and III is 3. 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, CCXXXIII → CC + XXX + III → 200 + 30 + 3 = 233
Rule 2: Repetition Method
To write a large number, there are certain Roman Numerals that can be repeated up to three times. 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 large number; this is the subtraction method. 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 233 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 233 in Roman numerals using the expansion method.
To write 233 in Roman Numerals, follow the steps:
Step 1: Break the number based on the place value. Place value refers to ones, tens, hundreds, etc.
For 233, we write it as 200 + 30 + 3
Step 2: Converting the number into Roman Numerals
200 in Roman Numerals — CC
30 in Roman Numerals — XXX
3 in Roman Numerals — III
Step 3: Combine the Roman Numerals together.
Therefore, 233 in Roman Numerals is CC (200) + XXX (30) + III (3) = CCXXXIII
When writing a large number into Roman Numerals, we group the numbers.
To write 233 in Roman Numerals, we group 233 as 200 + 30 + 3
200 in Roman Numerals — CC
30 in Roman Numerals — XXX
3 in Roman Numerals — III
So, 233 is written as CCXXXIII in Roman Numerals.
A historian is cataloging MMCCC documents and wants to distribute them equally into XXIII categories. How many documents will be in each category?
Find the difference between CCLXXX and XLVII.
A museum has CCXLV artifacts and plans to acquire more to reach a total of CDLXXVIII. How many more artifacts are needed?
Convert the sum of CLXXXVI and XLVII into Roman numerals.
Write the Roman numeral for 250 - 17 using a breakdown 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.