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Last updated on May 26th, 2025

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20000 in Roman Numerals

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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.

20000 in Roman Numerals for Canadian Students
Professor Greenline from BrightChamps

What is 20000 in Roman Numerals?

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 XX with a line over it to represent 20000, indicating that the number is multiplied by 1000. Let’s learn more about Roman numerals and how we write them.

 

20000 in roman numerals

Professor Greenline from BrightChamps

Basic Rules for 20000 in Roman Numerals

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, then it is the addition method. For example, VI → V + I → 5 + 1 = 6

 

Rule 2: Repetition Method

To write a large number, there are certain Roman Numerals that can be repeated up to three times. III → 3.

 

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; it is a subtraction method. For example, IV → V - I → 5 - 1 = 4

 

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 VV for 10; instead, we use X, and for 8, we write VIII, not IIIIIIII.

Professor Greenline from BrightChamps

How to Write 20000 in Roman Numerals

Let’s now learn how to write 20000 in Roman Numerals. Follow these methods to write the number in Roman Numerals.

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

20000 in Roman Numeral 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 20000 in Roman numerals using the expansion method. To write 20000 in Roman Numerals, follow these steps:

 

Step 1: Break the number based on its place value. The place values are ones, tens, hundreds, thousands, etc. For 20000, we represent it as 20 × 1000.

 

Step 2: Convert the number into Roman Numerals.

  • 20 in Roman Numeral — XX

 

  • 1000 in Roman Numeral — M (with a line over XX to indicate multiplication by 1000)

 

Step 3: Combine the Roman Numerals together. Therefore, 20000 in Roman Numeral is XX (20) with a line over it indicating 20000.

Professor Greenline from BrightChamps

20000 in Roman Numeral by Grouping Method

When writing a large number into Roman Numeral, we group the number. To write 20000 in Roman Numeral, we group 20000 as 20 × 1000.

  • 20 in Roman Numeral — XX

 

  • 1000 in Roman Numeral — M (with a line over XX to indicate multiplication by 1000)

So, 20000 is written as XX with a line over it in Roman Numerals.

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Common Mistakes and How to Avoid Them in 20000 Roman Numerals

Students 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.

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. In contrast, some of the Roman Numerals such as V, L, and D cannot be repeated.

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20000 in Roman Numerals Examples

Ray, the Character from BrightChamps Explaining Math Concepts
Max, the Girl Character from BrightChamps

Problem 1

A historian wants to archive MMMCMXC articles into groups of XXV. How many groups will be formed?

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The number of groups formed will be CLX.

Explanation

To find the number of groups, we divide the total number of articles by the size of each group.

MMMCMXC = 3990

XXV = 25

3990 / 25 = 159.6, which rounds to 160 groups.

160 in Roman numerals is CLX.

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Max, the Girl Character from BrightChamps

Problem 2

A collector has MMXX stamps and decides to buy more until he reaches XX thousand stamps. How many more stamps does he need?

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He needs to buy XVIIIC stamps.

Explanation

First, convert the numbers to decimals.

MMXX = 2020

XX thousand = 20000

20000 - 2020 = 17980

17980 in Roman Numerals is XVIIIC.

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Max, the Girl Character from BrightChamps

Problem 3

An architect designs a monument that will be XX meters high. If the budget allows for it to be increased by MM meters, what will be the monument's total height in meters?

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The total height of the monument will be MMXX meters.

Explanation

XX = 20 meters

MM = 2000 meters

20 + 2000 = 2020

2020 in Roman Numerals is MMXX.

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Max, the Girl Character from BrightChamps

Problem 4

A library has XX thousand books, and a new shipment adds M more books. What's the new total number of books in Roman numerals?

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The new total number of books is XXI thousand.

Explanation

XX thousand = 20000 books

M = 1000 books

20000 + 1000 = 21000

21000 in Roman Numerals is XXI thousand.

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Max, the Girl Character from BrightChamps

Problem 5

Calculate the difference between XX thousand and MMXVIII using Roman numerals.

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The difference is XVIIICCMLXXXII.

Explanation

XX thousand = 20000

MMXVIII = 2018

20000 - 2018 = 17982

17982 in Roman Numerals is XVIIICCMLXXXII.

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Ray Thinking Deeply About Math Problems

FAQs on 20000 in Roman Numerals

1.What is 10000 in Roman numerals?

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2.How to write 20000 in Roman numerals?

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3.What is 30000 in Roman Numerals?

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4.Is XX (with a line over it) a prime number?

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5.What are the multiples of 20000?

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6.How can children in Canada use numbers in everyday life to understand 20000 in Roman Numerals?

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7.What are some fun ways kids in Canada can practice 20000 in Roman Numerals with numbers?

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8.What role do numbers and 20000 in Roman Numerals play in helping children in Canada develop problem-solving skills?

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9.How can families in Canada create number-rich environments to improve 20000 in Roman Numerals skills?

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Professor Greenline from BrightChamps

Important Glossaries for 20000 in Roman Numerals

  • Addition rule: The addition method is used when a large number is followed by a smaller numeral; here, the 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 we convert each group into its Roman numerals. For example, 20000 = 20 × 1000 = XX (with a line over it).

 

  • Repetition rule: Certain symbols (I, X, C, M) in the Roman numeric system can be repeated only up to three times. For example, III = 3 (I is repeated three times to represent the number 3).

 

  • Multiplication by 1000: A line over a numeral indicates multiplication by 1000, which is essential for representing large numbers.

 

  • Subtraction rule: If a smaller numeral precedes a larger one, it is subtracted. For example, IV = 5 - 1 = 4.
Professor Greenline from BrightChamps

About BrightChamps in Canada

At BrightChamps, we know numbers are more than just symbols—they open doors to limitless possibilities! Our mission is to support kids across Canada in learning vital math skills, concentrating today on the 20000 in Roman Numerals with an emphasis on Roman numerals—in an engaging, easy, and enjoyable way. Whether your child is figuring out how fast a ride zooms through Canada’s Wonderland, following scores at a hockey game, or managing their allowance to buy new gadgets, mastering numbers empowers them with confidence for daily life. Our interactive lessons simplify learning while making it fun. Since Canadian children learn in different ways, we adapt our teaching to suit each child. From the lively streets of Toronto to British Columbia’s beautiful landscapes, BrightChamps makes math exciting and relevant all over Canada. Let’s bring Roman numerals into every child’s learning 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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