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Last updated on March 29th, 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. 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 CCCXLIX to represent 349, where CCC is 300, XL is 40, and IX is 9. 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, III → 3.
Rule 3: Subtraction Method
If a smaller number is followed by a larger 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. Similarly, we write 8 as VIII, not IIIIIIII.
Let’s now learn how to write 349 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 349 in Roman numerals using the expansion method.
To write 349 in Roman Numerals, follow the steps:
Step 1: The number is broken based on the place value. Place values are ones, tens, hundreds, etc.
For 349, we write it as 300 + 40 + 9.
Step 2: Converting the number into Roman Numerals:
300 in Roman Numerals — CCC
40 in Roman Numerals — XL
9 in Roman Numerals — IX
Step 3: Combining the Roman Numerals together:
Therefore, 349 in Roman Numerals is CCC (300) + XL (40) + IX (9) = CCCXLIX.
When writing a large number into Roman Numerals, we group the number.
To write 349 in Roman Numeral, we group 349 as 300 + 40 + 9:
300 in Roman Numerals — CCC
40 in Roman Numerals — XL
9 in Roman Numerals — IX
So, 349 is written as CCCXLIX in Roman Numerals.
A historian is cataloging artifacts from a Roman site and finds CCCXLIX coins distributed in XLVII boxes. How many coins are in each box?
An architect is planning to design a garden in the shape of a Roman numeral. The perimeter of the garden is CCCXLIX meters. If one side of the garden is XXIII meters, what is the length of the remaining side if the garden is a rectangle?
A teacher distributes a total of MCMXLIII apples evenly among CCCXLIX students. How many apples does each student receive?
Calculate the total cost if each of the CCCXLIX Roman-style bracelets is priced at VII denarii.
Write the Roman Numeral for the sum of CCLXXIV and LXXV using addition.
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.