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 CDLXX to represent 470, here C is 100, D is 500, L is 50, and X is 10. 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, LXX → L + X + X → 50 + 10 + 10 = 70
To write a large number, certain Roman Numerals can be repeated 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, which is the subtraction method. For example, XL → L - X → 50 - 10 = 40
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 won't write LL for 100; instead, we use C.
Let’s now learn how to write 470 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 470 in Roman numerals using the expansion method. To write 470 in Roman Numerals, follow the steps:
Step 1: The number is broken based on the place value. Place values are ones, tens, hundreds, etc. For 470, we write it as 400 + 70
Step 2: Converting the number into Roman Numerals 400 in Roman Numerals — CD 70 in Roman Numerals — LXX
Step 3: Combining the Roman Numerals together. Therefore, 470 in Roman Numerals is CD (400) + LXX (70) = CDLXX
When writing a large number into Roman Numerals, we group the number. To write 470 in Roman Numerals, we group 470 as 400 + 70
So, 470 is written as CDLXX 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.
A historian finds CLXX ancient coins in one treasure chest and CCC coins in another chest. How many coins are there in total in Roman numerals?
The total number of coins is CDLXX.
To find the total number of coins, we add the coins found in both chests.
CLXX = 170
CCC = 300
170 + 300 = 470
470 in Roman numerals is CDLXX.
A museum exhibit has DXX artifacts, but L artifacts are removed for restoration. How many artifacts remain in Roman numerals?
The remaining number of artifacts is CDLXX.
To find the remaining artifacts, we subtract the number removed from the total.
DXX = 520
L = 50
520 - 50 = 470
470 in Roman numerals is CDLXX.
Calculate the difference between D and XXX in Roman numerals.
The difference is CDLXX.
The difference is found by subtracting the smaller number from the larger number.
D = 500
XXX = 30
500 - 30 = 470
470 in Roman numerals is CDLXX.
A clock tower chimes CCCXX times in one day and CL times the next day. How many times does it chime in total over the two days in Roman numerals?
The total chimes over two days is CDLXX.
To find the total chimes, we add the chimes from both days.
CCCXX = 320
CL = 150
320 + 150 = 470
470 in Roman numerals is CDLXX.
Write the Roman numeral for 235 + 235 using the expansion method.
The Roman numeral for 235 + 235 is CDLXX.
Step 1: Convert the numbers 235 into Roman numerals
235 - CCXXXV
Add the numbers together:
235 + 235 = 470
Using expansion method:
470 = 400 + 70 = CDLXX.
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.