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Last updated on February 24th, 2025
Roman numerals are a system of expressing numbers using specific symbols. The symbols I, V, X, L, C, D, and M are used in this system. Roman numerals are often used in royal titles, book names, sequences, and other contexts. Here we will discuss Roman numerals, their rules, and examples.
Royal titles, such as Henry I, Henry II, and so on, often use Roman numerals. Have you noticed these titles and wondered what the symbols (I, II) represented? These are Roman numerals. In earlier times, people counted using fingers, sticks, bones, etc. As life became more complex, a standard form was needed for counting. Ancient Romans developed the Roman numeral system to fulfill this need. The symbols I (1), V (5), X (10), L (50), C (100), D (500), and M (1000) are used to represent numbers.
In Roman numerals, we use XXXIV to represent 34. Here, XXX is 30, and IV is 4. Let’s learn more about Roman numerals and how we write them.
There are basic rules to remember when writing numbers in Roman numerals. In this section, let’s discuss some basic rules that need to be remembered.
Rule 1: Addition Method
The addition method is used when a smaller number is placed after a larger number. For example, XXXIV → XXX + IV → 30 + 4 = 34.
Rule 2: Repetition Method
To write larger numbers, certain Roman numerals can be repeated up to three times. For example, XXX → 30.
Rule 3: Subtraction Method
If a smaller number precedes a larger number in Roman numerals, we subtract the smaller number from the larger one. For example, IV → V - I → 5 - 1 = 4.
Rule 4: Limitation Rule
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, 8 is written as VIII, not IIIIIIII.
Let’s now learn how to write 34 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 34 in Roman numerals using the expansion method.
To write 34 in Roman Numerals, follow these steps:
Step 1: Break the number based on place value, such as ones, tens, hundreds, etc.
For 34, we write it as 30 + 4.
Step 2: Convert the numbers into Roman numerals:
30 in Roman numerals — XXX
4 in Roman numerals — IV
Step 3: Combine the Roman numerals together.
Therefore, 34 in Roman numerals is XXX (30) + IV (4) = XXXIV.
When writing a large number in Roman numerals, we group the number.
To write 34 in Roman numerals, we group 34 as 30 + 4:
30 in Roman numerals — XXX
4 in Roman numerals — IV
So, 34 is written as XXXIV in Roman numerals.
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Calculate the difference between XL and VI using Roman numerals.
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Write the Roman Numeral for 20 + 14 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.