Last updated on May 26th, 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 more. Here we will be discussing Roman Numerals, rules, and examples.
Royal titles, such as Henry I, Henry II, and so on, use Roman Numerals. Have you noticed these names and wondered what these symbols (I and II) represented? Those are Roman Numerals. Earlier, people counted using fingers, sticks, bones, etc. As life became complex, a standard form was required for counting.
Ancient Romans used the Roman Numeral system to count. The symbols I (1), V (5), X (10), L (50), C (100), D (500), and M (1000) are used to count. In Roman Numerals, we use DXX to represent 520, where D is 500 and XX is 20.
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.
The addition method is used when the smaller number is placed after the larger number. For example, DXX → D + X + X → 500 + 10 + 10 = 520
To write a large number, certain Roman Numerals can be repeated up to three times. For example, XXX → 30.
If a smaller number is followed by a larger number in Roman Numerals, we subtract the smaller number from the larger number. For example, XL → L - X → 50 - 10 = 40
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 LL for 100; instead, we use C. We write 8 as VIII, not IIIIIIII.
Let’s now learn how to write 520 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 520 in Roman numerals using the expansion method. To write 520 in Roman Numerals, follow the steps:
Step 1: Break the number based on place value. Place values are ones, tens, hundreds, etc. For 520, we write it as 500 + 20
Step 2: Convert the number into Roman Numerals
500 in Roman Numerals - D
20 in Roman Numerals - XX
Step 3: Combine the Roman Numerals together. Therefore, 520 in Roman Numerals is D (500) + XX (20) = DXX
When writing a large number in Roman Numerals, we group the number. To write 520 in Roman Numerals, we group 520 as 500 + 20
So, 520 is written as DXX in Roman Numerals.
Students make mistakes when writing a number in Roman Numerals. To master Roman Numerals, we can learn a few common mistakes and ways to avoid them.
A historian is categorizing ancient artifacts and finds DXV and V items. What is the total number of items?
The total number of items is DXX.
DXV represents 515 and V represents 5. Adding these together: 515 + 5 = 520. In Roman Numerals, 520 is written as DXX.
An event organizer needs to distribute DXX tickets evenly among V groups. How many tickets does each group receive?
Each group receives CIV tickets.
To find the number of tickets each group receives, divide the total number of tickets by the number of groups:
DXX / V.
DXX = 520,
V = 5.
520 / 5 = 104.
104 in Roman Numerals is CIV.
A collector has CCCLXX and CL items. If he combines them, how many items does he have?
The collector has DXX items in total.
CCCLXX is 370 and CL is 150. Summing these gives: 370 + 150 = 520. 520 in Roman Numerals is DXX.
What is the difference between DL and XXX?
The difference between DL and XXX is DXX.
DL is 550, and XXX is 30. The difference is 550 - 30 = 520. In Roman Numerals, 520 is represented as DXX.
Write the Roman Numeral for 260 + 260 using the expansion method.
The Roman Numeral for 260 + 260 is DXX.
Step 1: Convert the numbers 260 into Roman numerals. 260 is CCLX. Adding the numbers together: 260 + 260 = 520. Using expansion method: 520 = 500 + 20 = DXX.
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.