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Last updated on February 21st, 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 discuss Roman Numerals, rules, and examples.
Royal titles, such as Henry I, Henry II, and so on, use Roman Numerals. Have you noticed the symbols (I and II) and wondered what they represent? Those are Roman Numerals. Earlier people used fingers, sticks, bones, etc., to count. As life became more complex, a standard form was needed 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 CCCXCIV to represent 394. Here, CCC is 300, XC is 90, and IV is 4. 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 a smaller number is placed after a larger number. For example, VI → V + I → 5 + 1 = 6.
Rule 2: Repetition Method
To write larger numbers, certain Roman Numerals can be repeated up to three times. For example, CCC → 300.
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, IV → V - I → 5 - 1 = 4.
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 394 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 394 in Roman numerals using the expansion method.
To write 394 in Roman Numerals, follow the steps:
Step 1: Break the number based on the place value. Place values are ones, tens, hundreds, etc.
For 394, we write it as 300 + 90 + 4.
Step 2: Converting the number into Roman Numerals:
300 in Roman Numerals is CCC.
90 in Roman Numerals is XC.
4 in Roman Numerals is IV.
Step 3: Combine the Roman Numerals together.
Therefore, 394 in Roman Numerals is CCC + XC + IV = CCCXCIV.
When writing a large number in Roman Numerals, we group the number. To write 394 in Roman Numerals, we group 394 as 300 + 90 + 4:
300 in Roman Numerals is CCC.
90 in Roman Numerals is XC.
4 in Roman Numerals is IV.
So, 394 is written as CCCXCIV in Roman Numerals.
A historian wants to organize a collection of CCCXCIV ancient artifacts into XIII groups. How many artifacts will be in each group?
An architect is designing a building with CCCXCIV windows, and he wants to arrange them in IX rows. How many windows will each row contain?
Calculate the sum of CLXXIV and CCXX.
What is the difference between CD and CCCXCIV?
Write the Roman Numeral for the sum of 300 and 94 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.