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Last updated on May 26th, 2025

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980 in Roman Numerals

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Roman numerals are a method of expressing numbers using specific symbols: I, V, X, L, C, D, and M. Roman Numerals are commonly utilized in royal titles, book names, sequences, and more. Here, we will discuss Roman Numerals, their rules, and examples.

980 in Roman Numerals for Singaporean Students
Professor Greenline from BrightChamps

What is 980 in Roman Numerals?

Royal titles such as Henry I, Henry II, etc., use Roman Numerals. Have you noticed these symbols and wondered what they 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 necessary.

 

The ancient Romans developed the Roman Numeral system. I (1), V (5), X (10), L (50), C (100), D (500), and M (1000) are the symbols used for counting. In Roman Numerals, we use CMLXXX to represent 980. Here, CM is 900, L is 50, and XXX is 30.

 

Let’s learn more about Roman numerals and how to write them.980 in roman numerals

Professor Greenline from BrightChamps

Basic Rules for 980 in Roman Numerals

Certain basic rules must be remembered when writing numbers in Roman Numerals. Let's discuss some of these rules.

 

Rule 1: Addition Method

When a smaller numeral appears after a larger numeral, the values are added. For example, LX → L + X → 50 + 10 = 60

 

Rule 2: Repetition Method

Certain Roman Numerals can be repeated up to three times to represent values. For example, XXX → 30.

 

Rule 3: Subtraction Method

When a smaller numeral precedes a larger numeral, it is subtracted from the larger numeral. For example, XC → C - X → 100 - 10 = 90

 

Rule 4: Limitation Rule

Symbols cannot be repeated more than three times, and symbols like V, L, and D cannot be repeated. For instance, we don't write LL for 100; instead, we use C.

Professor Greenline from BrightChamps

How to Write 980 in Roman Numerals

Let’s learn how to write 980 in Roman Numerals using these methods:

 

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

980 in Roman Numeral by Expansion Method

In the expansion method, numbers are broken down based on place value. Here's how to write 980 in Roman Numerals using this method:

 

Step 1: Break the number based on place value: hundreds, tens, and ones. For 980, we write it as 900 + 80.

 

Step 2: Convert each part into Roman Numerals:

  • 900 in Roman Numerals - CM
     
  • 80 in Roman Numerals - LXXX

 

Step 3: Combine the Roman Numerals together: Therefore, 980 in Roman Numerals is CM (900) + LXXX (80) = CMLXXX

Professor Greenline from BrightChamps

980 in Roman Numeral by Grouping Method

When writing a number in Roman Numerals, we group the numbers. For 980, group it as 900 + 80.

  • 900 in Roman Numerals - CM
     
  • 80 in Roman Numerals - LXXX

So, 980 is written as CMLXXX in Roman Numerals.

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Common Mistakes and How to Avoid Them in 980 Roman Numerals

Students often make mistakes when writing numbers in Roman Numerals. To master them, learn common mistakes and how to avoid them.

Mistake 1

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Errors in repetition method

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The repetition method can be confusing. Roman Numerals cannot be repeated more than three times, and some symbols like V, L, and D cannot be repeated.

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980 in Roman Numerals Examples

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Problem 1

A historian discovered CMLXXX ancient coins and wants to distribute them equally among L groups. How many coins will each group receive?

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Each group will receive XIX coins.

Explanation

To find the number of coins each group gets, divide the total coins by the number of groups.

CMLXXX = 980

L = 50

980 / 50 = 19

19 in Roman numerals can be written as XIX.

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Max, the Girl Character from BrightChamps

Problem 2

An archaeologist found two artifacts marked with CDXC and CDXC. What is the total value of these artifacts in Roman numerals?

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The total value of the artifacts is CMLXXX.

Explanation

The sum of the values is the result of adding the two numbers.

CDXC = 490

CDXC = 490

490 + 490 = 980

980 in Roman Numerals is CMLXXX.

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Problem 3

A teacher gives a test with CMLXXX questions. If a student answers DCCCLXX correctly, how many questions did they miss?

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The student missed CX questions.

Explanation

To find the number of questions missed, subtract the number of correct answers from the total questions.

CMLXXX = 980

DCCCLXX = 870

980 - 870 = 110

110 in Roman numerals can be written as CX.

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Max, the Girl Character from BrightChamps

Problem 4

Write the Roman numeral for the difference between M and XX.

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The Roman numeral for the difference is CMLXXX.

Explanation

The difference is the result of subtracting one number from another.

M = 1000

XX = 20

1000 - 20 = 980

980 in Roman numerals can be written as CMLXXX.

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Max, the Girl Character from BrightChamps

Problem 5

Express the sum of DCCC and CLXXX in Roman numerals using the expansion method.

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The sum of DCCC and CLXXX is CMLXXX.

Explanation

Step 1: Convert the numbers into Roman numerals

DCCC = 800

CLXXX = 180

Step 2: Add the numbers together: 800 + 180 = 980

Using the expansion method, 980 = 900 + 80 = CMLXXX.

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FAQs on 980 in Roman Numerals

1.What is 900 in Roman numerals?

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2.How to write 980 in Roman numerals?

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3.What is 1000 in Roman Numerals?

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4.Is CMLXXX a prime number?

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5.What are the multiples of 980?

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6.How can children in Singapore use numbers in everyday life to understand 980 in Roman Numerals?

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7.What are some fun ways kids in Singapore can practice 980 in Roman Numerals with numbers?

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8.What role do numbers and 980 in Roman Numerals play in helping children in Singapore develop problem-solving skills?

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9.How can families in Singapore create number-rich environments to improve 980 in Roman Numerals skills?

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Professor Greenline from BrightChamps

Important Glossaries for 980 in Roman Numerals

  • Addition rule: Addition is used when a smaller numeral follows a larger numeral, adding their values. For example, LXXX = L + XXX = 50 + 30 = 80.
     
  • Grouping method: Numbers are grouped based on place value before conversion to Roman Numerals. For example, 980 = 900 + 80 = CMLXXX.
     
  • Repetition rule: Certain symbols (I, X, C, M) can be repeated up to three times. For example, XXX = 30 (X is repeated three times).
     
  • Subtraction rule: Subtraction is used when a smaller numeral precedes a larger numeral, subtracting the smaller from the larger. For example, CM = 1000 - 100 = 900.
     
  • Limitation rule: Symbols like V, L, and D cannot be repeated, and no symbol should be repeated more than three times consecutively.
Professor Greenline from BrightChamps

About BrightChamps in Singapore

At BrightChamps, we know numbers are more than just digits—they open the door to endless opportunities! Our mission is to help children across Singapore master vital math skills, focusing today on the 980 in Roman Numerals with a special focus on Roman numerals—in an engaging, simple, and enjoyable way. Whether your child is figuring out how fast a roller coaster moves at Universal Studios Singapore, tracking scores at local football games, or managing their allowance to buy the latest gadgets, mastering numbers gives them the confidence to tackle everyday challenges. Our interactive lessons make learning both fun and easy. Because kids in Singapore learn in many different ways, we customize our teaching to fit each child’s style. From the city’s bustling streets to its scenic gardens, BrightChamps brings math to life, making it exciting and relevant throughout Singapore. Let’s make Roman numerals a fun part of 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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