Last updated on May 26th, 2025
Roman numerals are a way of expressing numbers using symbols: I, V, X, L, C, D, and M. Roman Numerals are used in royal titles, book names, sequences, and more. Here we will be discussing Roman Numerals, their rules, and examples.
The royal titles, such as Henry I, Henry II, etc., often use Roman Numerals. Have you noticed the names and wondered what these symbols represent? Those are Roman Numerals. In ancient times, people used fingers, sticks, and bones for counting.
As life became more complex, a standardized form was required, leading to the Roman Numeral system. I (1), V (5), X (10), L (50), C (100), D (500), and M (1000) are the symbols used. In Roman Numerals, we use DCCII to represent 702, where D is 500, C is 100, and I is 1.
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, DCCII → D + C + C + I + I → 500 + 100 + 100 + 1 + 1 = 702
To write larger numbers, some Roman Numerals can be repeated up to three times. For example, CCC → 300.
If a small number is followed by a larger number, we subtract the smaller number. For example, IV → V - I → 5 - 1 = 4
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.
Let’s now learn how to write 702 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 702 in Roman numerals using the expansion method. To write 702 in Roman Numerals, follow the steps,
Step 1: Break the number based on place value, such as hundreds, tens, and ones. For 702, we write it as 500 + 100 + 100 + 1 + 1
Step 2: Convert the numbers into Roman Numerals
Step 3: Combine the Roman Numerals together. Therefore, 702 in Roman Numerals is D (500) + C (100) + C (100) + I (1) + I (1) = DCCII
When writing a large number into Roman Numerals, we group the number. To write 702 in Roman Numerals, we group 702 as 500 + 100 + 100 + 1 + 1
So, 702 is written as DCCII 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.
Calculate the sum of CDLXXIII and CCXXIX.
The sum of CDLXXIII and CCXXIX is DCCII.
To find the sum, we first convert CDLXXIII and CCXXIX into numbers:
CDLXXIII = 473
CCXXIX = 229
473 + 229 = 702
702 in Roman numerals is written as DCCII.
A historian finds DCCII ancient coins in a chest and wants to distribute them equally among XIII scholars. How many coins will each scholar receive?
Each scholar will receive LIV coins.
To find the number of coins each scholar receives, divide the total number of coins by the number of scholars:
DCCII / XIII
DCCII = 702
XIII = 13
702 / 13 = 54
54 in Roman numerals is LIV.
Determine the difference between M and CCXCVIII.
The difference between M and CCXCVIII is DCCII.
To find the difference, subtract CCXCVIII from M:
M = 1000
CCXCVIII = 298
1000 - 298 = 702
702 in Roman numerals is DCCII.
A collector has a set of seven paintings, each valued at CII Roman numeral units. What is the combined value of all paintings in Roman numerals?
The combined value of all paintings is DCCII.
First, calculate the total value:
CII = 102
102 × 7 = 714
714 in Roman numerals is DCCXIV.
Express the Roman numeral for 700 + 2 using the expansion method.
The Roman numeral for 700 + 2 is DCCII.
Step 1: Convert the numbers 700 and 2 into Roman numerals
700 = DCC
2 = II
Add them together: 700 + 2 = 702
Using the expansion method, 702 = 700 + 2 = DCCII.
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.