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Last updated on February 21st, 2025
Roman numerals are a system of expressing numbers using specific symbols. The symbols I, V, X, L, C, D, and M are used. Roman Numerals are commonly seen in royal titles, book names, sequences, and more. In this article, we will explore Roman numerals, their rules, and examples.
Royal titles like Henry I, Henry II, and so on use Roman Numerals. Have you noticed these symbols (I and II) and wondered what they represent? They are Roman Numerals. In ancient times, people counted using fingers, sticks, bones, etc. As life grew complex, a standardized form of counting became necessary. The ancient Romans developed the Roman Numeral system. The symbols used are I (1), V (5), X (10), L (50), C (100), D (500), and M (1000).
In Roman Numerals, we use CCCLVIII to represent 358. Here, CCC is 300, L is 50, V is 5, and III is 3. Let’s learn more about Roman numerals and how we write them.
There are basic rules for writing numbers in Roman Numerals. Let's discuss some rules to remember when writing numbers in Roman numerals.
Rule 1: Addition Method
The addition method is used when a smaller numeral is placed after a larger numeral, indicating addition. For example, VIII → V + III → 5 + 3 = 8.
Rule 2: Repetition Method
Certain Roman Numerals can be repeated up to three times to represent a number. For example, III → 3.
Rule 3: Subtraction Method
When a smaller numeral precedes a larger numeral, it indicates subtraction. For example, IV → V - I → 5 - 1 = 4.
Rule 4: Limitation Rule
Symbols cannot be repeated more than three times, and symbols like V, L, and D cannot be repeated. For example, we don't write VV for 10; instead, we write X. Similarly, 8 is written as VIII, not IIIIIIII.
Let’s learn how to write 358 in Roman Numerals using different methods.
In the expansion method, the number is broken down based on place value. Here’s how to write 358 in Roman numerals using this method:
Step 1: Break down the number based on place value: hundreds, tens, and ones.
For 358, we write it as 300 + 50 + 8.
Step 2: Convert each number into Roman Numerals.
300 in Roman Numerals — CCC
50 in Roman Numerals — L
8 in Roman Numerals — VIII
Step 3: Combine these Roman Numerals.
Therefore, 358 in Roman Numerals is CCC (300) + L (50) + VIII (8) = CCCLVIII.
When writing a large number in Roman Numerals, group the number.
To write 358, we group it as 300 + 50 + 8.
300 in Roman Numerals — CCC
50 in Roman Numerals — L
8 in Roman Numerals — VIII
So, 358 is written as CCCLVIII in Roman Numerals.
A historian is examining artifacts and finds CCCLVIII ancient coins. If each display case can hold LXXX coins, how many full display cases can the historian fill?
A puzzle enthusiast is solving a number puzzle where the goal is to find the sum of DLX and CCCLVIII. What is the result in Roman numerals?
An architect is designing a column structure where each column is CCCLVIII centimeters tall. If the total height of the structure is MCMXIV centimeters, how many columns are there?
Calculate the difference between MCMLXXVI and CCCLVIII. What is the result in Roman numerals?
Convert the sum of CCLXXX and CCCLVIII into Roman numerals 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.