Last updated on May 26th, 2025
Roman numerals are the 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 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., to count earlier.
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 CCCLXXIII to represent 373, where CCC is 300, LXX is 70, and III is 3. 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 the smaller number is placed after the larger number. For example, LXX → L + X + X → 50 + 10 + 10 = 70.
Rule 2: Repetition Method
To write a large number, certain Roman Numerals can be repeated up to three times. CCC → 300 (C is repeated three times).
Rule 3: Subtraction Method
If a small number is followed by a large number in Roman Numerals, we subtract the smaller number from the large number. For example, IX → X - I → 10 - 1 = 9.
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 don't write VV for 10; instead, we use X, and 8 is written as VIII, not IIIIIIII.
Let’s now learn how to write 373 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 373 in Roman numerals using the expansion method.
To write 373 in Roman Numerals, follow the steps:
Step 1: Break the number based on the place value. Place values are ones, tens, hundreds, etc.
For 373, we write it as 300 + 70 + 3.
Step 2: Converting the number into Roman Numerals:
- 300 in Roman Numerals — CCC
- 70 in Roman Numerals — LXX
- 3 in Roman Numerals — III
Step 3: Combine the Roman Numerals together.
Therefore, 373 in Roman Numerals is CCC (300) + LXX (70) + III (3) = CCCLXXIII.
When writing a large number into Roman Numerals, we group the number.
To write 373 in Roman Numerals, we group 373 as 300 + 70 + 3.
- 300 in Roman Numerals — CCC
- 70 in Roman Numerals — LXX
- 3 in Roman Numerals — III
So, 373 is written as CCCLXXIII in Roman Numerals.
Students may 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 discovers two ancient artifacts, one labeled CCC and the other LXXIII. What is the combined year these artifacts represent?
The combined year the artifacts represent is CCCLXXIII.
To find the combined year, we add the values of the Roman numerals.
CCC = 300
LXXIII = 73
300 + 73 = 373
373 in Roman Numerals is CCCLXXIII.
A librarian has CCCLXXIII scrolls and wants to distribute them equally among V scholars. How many scrolls will each scholar receive?
Each scholar will receive LXXIV scrolls.
Divide the total number of scrolls by the number of scholars.
CCCLXXIII = 373
V = 5
373 / 5 = 74
74 in Roman numerals is LXXIV.
Calculate the difference between CD and CCCLXXIII.
The difference between CD and CCCLXXIII is XXVII.
Subtract the smaller number from the larger number.
CD = 400
CCCLXXIII = 373
400 - 373 = 27
27 in Roman numerals is XXVII.
Convert the year 373 into Roman numerals and explain the process using the expansion method.
373 in Roman numerals is CCCLXXIII.
Break down the number 373 into hundreds, tens, and units:
- 300 is represented as CCC
- 70 is represented as LXX
- 3 is represented as III
Combine them together: CCC + LXX + III = CCCLXXIII.
A museum exhibit has CCCLXXXI artifacts. After a review, VIII artifacts are removed. How many artifacts remain?
Subtract the removed artifacts from the total.
CCCLXXXI = 381
VIII = 8
381 - 8 = 373
373 in Roman numerals is CCCLXXIII.
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.