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Last updated on February 24th, 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 CCXL to represent 240, where CC is 200, XL is 40. 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, VI → V + I → 5 + 1 = 6
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 is placed before a large number in Roman Numerals, we subtract the smaller number from the large number. For example, XL → L - X → 50 - 10 = 40
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 XXC for 120 instead we use CXX.
Let’s now learn how to write 240 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 240 in Roman numerals using the expansion method.
To write 240 in Roman Numerals, follow these steps:
Step 1: Break the number based on the place value. Place value that is ones, tens, hundreds, etc.
For 240, write it as 200 + 40
Step 2: Converting the number into Roman Numerals
200 in Roman Numerals — CC
40 in Roman Numerals — XL
Step 3: Combine the Roman Numerals together.
Therefore, 240 in Roman Numerals is CC (200) + XL (40) = CCXL
When writing a large number in Roman Numerals, we group the numbers.
To write 240 in Roman Numerals, we group 240 as 200 + 40
200 in Roman Numerals — CC
40 in Roman Numerals — XL
So, 240 is written as CCXL in Roman Numerals.
A historian finds a scroll with the calculation CCXL divided by VIII. Determine the result and express it in Roman numerals.
An ancient architect is tasked with building a structure using CCXL stones, distributed evenly over XX layers. Find out how many stones will be in each layer and express it in Roman numerals.
Calculate the sum of CLV and LXXXV using Roman numerals.
An archaeologist discovers two artifacts weighing CX and CXXX respectively. Determine the total weight of the artifacts combined, expressed in Roman numerals.
Express the result of multiplying XX by XII in Roman numerals.
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.