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.
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. 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 DCCXCII to represent 792, where D is 500, CC is 200, XC is 90, and II is 2. 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, then it is the addition method. For example, VI → V + I → 5 + 1 = 6
To write a large number, there are certain Roman numerals that can be repeated up to three times. For example, XXX → 30.
If a small number is followed by a large number in Roman numerals, we subtract the smaller number from the large number; it is a subtraction method. For example, IX → X - I → 10 - 1 = 9
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 8 is written as VIII, not IIIIIIII.
Let’s now learn how to write 792 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 792 in Roman numerals using the expansion method.
To write 792 in Roman numerals, follow the steps:
Step 1: The number is broken down based on the place value. Place values are ones, tens, hundreds, etc. For 792, we write it as 500 + 200 + 90 + 2
Step 2: Converting the number into Roman numerals
Step 3: Combining the Roman numerals together. Therefore, 792 in Roman Numerals is D (500) + CC (200) + XC (90) + II (2) = DCCXCII
When writing a large number into Roman numerals, we group the number. To write 792 in Roman numerals, we group 792 as 500 + 200 + 90 + 2
So, 792 is written as DCCXCII 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 the ways to avoid them.
If a historian finds DCCXXXII coins and needs to catalog them into sets of LXXXVIII coins each, how many complete sets will he have?
He will have IX complete sets.
To find the number of complete sets, divide the total number of coins by the number of coins per set.
DCCXXXII = 732
LXXXVIII = 88
732 / 88 = 8 complete sets with a remainder
However, in Roman Numerals, the complete sets number is VIII.
A museum exhibit has DCCXCII artifacts that need to be equally distributed among XXVI display cases. How many artifacts will each case contain?
Each display case will contain XXX artifacts.
To find the number of artifacts each display case contains, divide the total number of artifacts by the number of cases.
DCCXCII = 792
XXVI = 26
792 / 26 = 30
30 in Roman Numerals is XXX.
Calculate the sum of CCCLVI and CDXXXVI in Roman numerals.
The sum of CCCLVI and CDXXXVI is DCCXCII.
Sum is the result of adding two numbers.
CCCLVI = 356
CDXXXVI = 436
356 + 436 = 792
792 in Roman Numerals is DCCXCII.
What is the difference between DCCCII and X?
The difference between DCCCII and X is DCCXCII.
The difference of two numbers is the value we get when subtracting one number from the other.
DCCCII = 802
X = 10
802 - 10 = 792
792 in Roman Numerals can be written as DCCXCII.
Write the Roman Numeral for 700 + 92 using the expansion method.
The Roman numeral for 700 + 92 is DCCXCII.
Step 1: First convert the numbers 700 and 92 into Roman numerals.
700 - DCC
92 - XCII
Add the numbers together: 700 + 92 = 792
Using the expansion method: 792 = 700 + 92 = DCCXCII.
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.