Last updated on May 26th, 2025
Roman numerals are a method 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.
The royal titles, such as Henry I, Henry II, and so on, often use Roman numerals. Have you noticed these symbols and wondered what they represent? Those are Roman numerals.
In ancient times, people counted using fingers, sticks, bones, etc. When life became more complex, a standardized form was required for counting, and the ancient Romans used the Roman numeral system. 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 DXXVII to represent 527, where D is 500, XX is 20, and VII is 7. 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, DXXVII → D + XX + VII → 500 + 20 + 7 = 527
To write a large number, certain Roman numerals can be repeated up to three times. For example, XX → 20.
If a small number is followed by a large number in Roman numerals, we subtract the smaller number from the large number. For example, IV → V - I → 5 - 1 = 4
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 DD for 1000; instead, we use M.
Let’s now learn how to write 527 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 527 in Roman numerals using the expansion method.
To write 527 in Roman numerals, follow these steps:
Step 1: The number is broken down based on place value, such as ones, tens, hundreds, etc. For 527, we write it as 500 + 20 + 7
Step 2: Converting the number into Roman numerals: 500 in Roman numeral — D 20 in Roman numeral — XX 7 in Roman numeral — VII
Step 3: Combining the Roman numerals together. Therefore, 527 in Roman numeral is D (500) + XX (20) + VII (7) = DXXVII
When writing a large number in Roman numerals, we group the number.
To write 527 in Roman numerals, we group 527 as 500 + 20 + 7
So, 527 is written as DXXVII in Roman numerals.
Students often make mistakes when writing numbers in Roman numerals. To master Roman numerals, we can learn a few common mistakes and ways to avoid them.
If a historian finds DXXVII ancient coins and wants to evenly distribute them into LII treasure chests, how many coins will each chest contain?
Each treasure chest will contain X coins.
To find the number of coins per chest, divide the total number of coins by the number of chests.
DXXVII = 527
LII = 52
527 / 52 = 10
10 in Roman Numerals is X.
During a marathon, a runner completed CXXIV kilometers on the first day and CDIII kilometers on the second day. What is the total distance covered by the runner?
The total distance covered by the runner is DXXVII kilometers.
Add the distances covered on each day.
CXXIV = 124
CDIII = 403
124 + 403 = 527
527 in Roman Numerals is DXXVII.
A library has a collection of DXXVII books and plans to donate CXLIX books. How many books will remain in the library?
The library will have CCCLXXVIII books remaining.
Subtract the number of donated books from the total number of books.
DXXVII = 527
CXLIX = 149
527 - 149 = 378
378 in Roman Numerals is CCCLXXVIII.
A museum exhibit has DXXVII items, and they are arranging them into groups of XV for a display. How many full groups can be formed?
You can form XXXV full groups.
Divide the total number of items by the number of items per group.
DXXVII = 527
XV = 15
527 / 15 = 35 (full groups)
35 in Roman Numerals is XXXV.
Find the sum of CCXLVIII and CCLXXIX using Roman numerals.
The sum of CCXLVIII and CCLXXIX is DXXVII.
Add the numbers together.
CCXLVIII = 248
CCLXXIX = 279
248 + 279 = 527
527 in Roman Numerals is DXXVII.
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.