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Last updated on May 26th, 2025

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453 in Roman Numerals

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Roman numerals are a way of expressing numbers using symbols. I, V, X, L, C, D, and M are the symbols used. Roman numerals are used in royal titles, book names, sequences, and more. Here we will be discussing Roman numerals, rules, and examples.

453 in Roman Numerals for Vietnamese Students
Professor Greenline from BrightChamps

What is 453 in Roman Numerals?

The royal titles, such as Henry I, Henry II, and so on, use Roman numerals. Have you noticed the names and wondered what these symbols (I and II) represented? Those are the Roman numerals.

 

Earlier, people used fingers, sticks, bones, etc., to count. When life became more complex, a standard form was required for counting.

 

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 CDLIII to represent 453, where C is 100, D is 500, L is 50, and III is 3. Let’s learn more about Roman numerals and how we write them.

453 in roman numerals

Professor Greenline from BrightChamps

Basic Rules for 453 in Roman Numerals

There are certain basic rules for writing 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 a smaller number is placed after a larger number. For example, VI → V + I → 5 + 1 = 6.

 

Rule 2: Repetition Method

 

To write a large number, certain Roman numerals can be repeated up to three times. For example, III → 3.

 

Rule 3: Subtraction Method

 

If a small number precedes a large number in Roman numerals, we subtract the smaller number from the larger number. For example, IV → V - I → 5 - 1 = 4.

 

Rule 4: Limitation Rule

 

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 for 8, we write VIII, not IIIIIIII.

Professor Greenline from BrightChamps

How to Write 453 in Roman Numerals

Let’s now learn how to write 453 in Roman numerals. Follow these methods to write the number in Roman numerals.

 

  • By Expansion Method
  • By Grouping Method
Professor Greenline from BrightChamps

453 in Roman Numerals by Expansion Method

In the expansion method, based on the place value, the number is broken down. In this section, we will learn how to write 453 in Roman numerals using the expansion method. To write 453 in Roman numerals, follow the steps:

 

Step 1: Break the number based on place value: ones, tens, hundreds, etc. For 453, we write it as 400 + 50 + 3.

 

Step 2: Convert the number into Roman numerals: - 400 in Roman numerals — CD - 50 in Roman numerals — L - 3 in Roman numerals — III

 

Step 3: Combine the Roman numerals together. Therefore, 453 in Roman numerals is CD (400) + L (50) + III (3) = CDLIII.

Professor Greenline from BrightChamps

453 in Roman Numerals by Grouping Method

When writing a large number in Roman numerals, we group the numbers. To write 453 in Roman numerals, we group 453 as 400 + 50 + 3:

 

  • 400 in Roman numerals — CD
     
  • 50 in Roman numerals — L
     
  • 3 in Roman numerals — III

 

So, 453 is written as CDLIII in Roman numerals.

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Common Mistakes and How to Avoid Them in 453 Roman Numerals

Students make mistakes when writing numbers in Roman numerals. To master Roman numerals, we can learn a few common mistakes and ways to avoid them.

Mistake 1

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Errors in Repetition Method

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The repetition method can be confusing for beginners as it states that Roman numerals cannot be repeated more than three times. Furthermore, some Roman numerals such as V, L, and D cannot be repeated.

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453 in Roman Numerals Examples

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Max, the Girl Character from BrightChamps

Problem 1

Convert the year when the Roman Empire reached its greatest territorial extent, AD 117, and the year of the fall of Constantinople, AD 1453, into Roman numerals, and find the difference between them.

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The difference between the years AD CXVII and AD MCDLIII is MCCCXXXVI.

Explanation

First, we convert the years into Roman numerals:

AD 117 = CXVII

AD 1453 = MCDLIII

Next, we find the difference: 1453 - 117 = 1336

1336 in Roman numerals is MCCCXXXVI.

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Max, the Girl Character from BrightChamps

Problem 2

A historian is cataloging ancient coins marked with the Roman numeral CDLIII. If each coin is worth CD minus L in Roman value, how much is each coin worth?

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Each coin is worth CCC.

Explanation

First, convert the Roman numerals to numbers:

CDLIII = 453

CD = 400

L = 50

Subtract the value of L from CD:

400 - 50 = 350

350 in Roman numerals is CCC.

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Max, the Girl Character from BrightChamps

Problem 3

An archaeologist discovered inscriptions in a cave that state a number in Roman numerals as CDLIII and another as CXLVII. Find their sum.

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The sum of CDLIII and CXLVII is DC.

Explanation

First, convert the Roman numerals to numbers:

CDLIII = 453

CXLVII = 147

Calculate the sum:

453 + 147 = 600

600 in Roman numerals is DC.

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Max, the Girl Character from BrightChamps

Problem 4

A museum has a collection of ancient scrolls, each labeled with a Roman numeral. If one scroll is labeled CCC and another is labeled CLIII, what is the difference in their values?

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The difference between CCC and CLIII is CLVII.

Explanation

First, convert the Roman numerals to numbers:

CCC = 300

CLIII = 153

Calculate the difference:

300 - 153 = 147

147 in Roman numerals is CXLVII.

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Max, the Girl Character from BrightChamps

Problem 5

Write the Roman Numeral for 453 using the expansion method.

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The Roman numeral for 453 is CDLIII.

Explanation

Step 1: Break down the number 453 into place values: 400 + 50 + 3

Step 2: Convert each into Roman numerals: 400 = CD 50 = L 3 = III

Combine them: 400 + 50 + 3 = CDLIII

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FAQs on 453 in Roman Numerals

1.What is 450 in Roman Numerals?

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2.How to write 453 in Roman numerals?

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3.What is 456 in Roman Numerals?

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4.Is CDLIII a prime number?

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5.What are the multiples of 453?

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6.How can children in Vietnam use numbers in everyday life to understand 453 in Roman Numerals?

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7.What are some fun ways kids in Vietnam can practice 453 in Roman Numerals with numbers?

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8.What role do numbers and 453 in Roman Numerals play in helping children in Vietnam develop problem-solving skills?

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9.How can families in Vietnam create number-rich environments to improve 453 in Roman Numerals skills?

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Professor Greenline from BrightChamps

Important Glossaries for 453 in Roman Numerals

  • Addition Rule: The addition method is used when a larger numeral is followed by a smaller numeral, and their values are added. For example, VI = V + I = 5 + 1 = 6.
     
  • Grouping Method: Here, the given numbers are grouped based on their place value and then converted into Roman numerals. For example, 453 = 400 + 50 + 3 = CDLIII.
     
  • Repetition Rule: Certain symbols (I, X, C, M) in the Roman numeral system can be repeated only up to three times. For example, III = 3 (I is repeated three times to represent the number 3).
     
  • Subtraction Rule: Used when a smaller numeral precedes a larger numeral, subtracting the smaller from the larger. For example, IV = 5 - 1 = 4.
     
  • Limitation Rule: Some symbols, like V, L, and D, cannot be repeated. For example, 10 is X, not VV.
Professor Greenline from BrightChamps

About BrightChamps in Vietnam

At BrightChamps, we know numbers are not just figures—they open the door to endless possibilities! Our aim is to help children throughout Vietnam build key math skills, focusing today on the 453 in Roman Numerals with an emphasis on Roman numerals—in a way that is fun, engaging, and easy to grasp. Whether your child is calculating the speed of a roller coaster at Suoi Tien Theme Park, keeping track of scores at a local football match, or managing their allowance for new gadgets, mastering numbers gives them the confidence for everyday tasks. Our interactive lessons make learning straightforward and enjoyable. Recognizing that children in Vietnam have varied learning styles, we customize our approach for each child. From the lively streets of Ho Chi Minh City to the scenic beauty of Ha Long Bay, BrightChamps makes math come alive and exciting across Vietnam. Let’s bring Roman numerals into every child’s math adventure!
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Hiralee Lalitkumar Makwana

About the Author

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.

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Max, the Girl Character from BrightChamps

Fun Fact

: She loves to read number jokes and games.

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