BrightChamps Logo
Hamburger Menu Icon for BrightChamps Website Navigation

Math Table of Contents Dropdown Table Of Contents

Creative Math Ideas Image
Live Math Learners Count Icon104 Learners

Last updated on February 20th, 2025

Math Whiteboard Illustration

210 in Roman Numerals

Professor Greenline Explaining Math Concepts
Foundation
Intermediate
Advance Topics

Roman numerals are a 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.

Professor Greenline from BrightChamps

What is 210 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. 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 CCX to represent 210, here CC is 200 and X is 10. Let’s learn more about Roman numerals and how we write them.

210 in roman numerals
 

Professor Greenline from BrightChamps

Basic Rules for 210 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, CCX → C + C + X → 100 + 100 + 10 = 210

 

Rule 2: Repetition Method

 

To write a large number, there are certain Roman Numerals that can be repeated three times. CCC → 300.

 

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, IX → X - I → 10 - 1 = 9

 

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 8 we write as VIII not IIIIIIII.

Professor Greenline from BrightChamps

How to Write 210 in Roman Numerals

Let’s now learn how to write 210 in Roman Numerals. Follow these methods to write the number in Roman Numerals.

 

By Expansion Method  
By Grouping Method  
 

Professor Greenline from BrightChamps

210 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 210 in Roman numerals using the expansion method.

 

To write 210 in Roman Numerals, follow the steps,

 

Step 1: The number is break based on the place value. Place value that is ones, tens, hundreds, etc.

 

For 210 we write it as 200 + 10


Step 2: Converting the number into Roman Numerals  


200 in Roman Numeral — CC  
10 in Roman Numeral — X  


Step 3: Combining them Roman Numerals together.  


Therefore, 210 in Roman Numeral is C (100) + C (100) + X (10) = CCX
 

Professor Greenline from BrightChamps

210 in Roman Numeral by Grouping Method

When writing a large number into Roman Numeral we group the number.  


To write 210 in Roman Numeral, we group 210 as 200 + 10  


200 in Roman Numeral — CC  
10 in Roman Numeral — X  


So, 210 is written as CCX in Roman Numerals.
 

Max Pointing Out Common Math Mistakes

Common Mistakes and How to Avoid Them in 210 Roman Numerals

Max from BrightChamps Saying "Hey"

210 in Roman Numerals Examples

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

Problem 1

A historian finds CCX artifacts from an ancient civilization. He decides to distribute these artifacts equally among X museums. How many artifacts does each museum receive?

Ray, the Boy Character from BrightChamps Saying "Let’s Begin"

Explanation

Max from BrightChamps Praising Clear Math Explanations
Max, the Girl Character from BrightChamps

Problem 2

A treasure chest contains CCX gold coins, and a pirate crew finds another LXXX coins. What is the total number of coins?

Ray, the Boy Character from BrightChamps Saying "Let’s Begin"

Explanation

Max from BrightChamps Praising Clear Math Explanations
Max, the Girl Character from BrightChamps

Problem 3

Calculate the difference between CCC and CCX.

Ray, the Boy Character from BrightChamps Saying "Let’s Begin"

Explanation

Max from BrightChamps Praising Clear Math Explanations
Max, the Girl Character from BrightChamps

Problem 4

Convert the sum of CC and X to Roman numerals using the expansion method.

Ray, the Boy Character from BrightChamps Saying "Let’s Begin"

Explanation

Max from BrightChamps Praising Clear Math Explanations
Max, the Girl Character from BrightChamps

Problem 5

A mathematician is solving a puzzle where she needs to multiply XIV by XV. What is the product in Roman numerals?

Ray, the Boy Character from BrightChamps Saying "Let’s Begin"

Explanation

Max from BrightChamps Praising Clear Math Explanations
Ray Thinking Deeply About Math Problems

FAQs on 210 in Roman Numerals

1.What is 9 in Roman numerals?

Math FAQ Answers Dropdown Arrow

2.How to write 210 in Roman numerals?

Math FAQ Answers Dropdown Arrow

3.What is 16 in Roman Numerals?

Math FAQ Answers Dropdown Arrow

4.What are the multiples of 210?

Math FAQ Answers Dropdown Arrow
Professor Greenline from BrightChamps

Important Glossaries for 210 in Roman Numerals

  • Addition rule: Addition method is used when a large number is followed by a smaller numeral, here the values are added. For example, CCX = C + C + X = 100 + 100 + 10 = 210  
     
  • 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, 210 = 200 + 10 = CCX  
     
  • Repetition rule: Certain symbols (I, X, C, M) in the Roman numeric system can be repeated only up to three times. For example, CCC = 300 (C is repeated three times to represent the number 300).  
     
  • Subtraction rule: This rule applies when a smaller numeral is placed before a larger numeral, indicating subtraction. For instance, IX = X - I = 10 - 1 = 9.  
     
  • Limitation rule: Symbols like V, L, and D cannot be repeated. Other symbols like I, X, C, and M can be repeated up to three times.
     
Math Teacher Background Image
Math Teacher Image

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.

Math Teacher Fun Facts Image
Max, the Girl Character from BrightChamps

Fun Fact

: She loves to read number jokes and games.

BrightChamps Logo
Follow Us
BrightChamps Facebook Page IconBrightChamps YouTube Channel IconBrightChamps Instagram IconBrightChamps LinkedIn Page Icon
INDONESIA
Axa Tower 45th floor, JL prof. Dr Satrio Kav. 18, Kel. Karet Kuningan, Kec. Setiabudi, Kota Adm. Jakarta Selatan, Prov. DKI Jakarta
INDIA
H.No. 8-2-699/1, SyNo. 346, Rd No. 12, Banjara Hills, Hyderabad, Telangana - 500034
SINGAPORE
60 Paya Lebar Road #05-16, Paya Lebar Square, Singapore (409051)
USA
251, Little Falls Drive, Wilmington, Delaware 19808
VIETNAM (Office 1)
Hung Vuong Building, 670 Ba Thang Hai, ward 14, district 10, Ho Chi Minh City
VIETNAM (Office 2)
143 Nguyễn Thị Thập, Khu đô thị Him Lam, Quận 7, Thành phố Hồ Chí Minh 700000, Vietnam
Dubai
BrightChamps, 8W building 5th Floor, DAFZ, Dubai, United Arab Emirates
UK
Ground floor, Redwood House, Brotherswood Court, Almondsbury Business Park, Bristol, BS32 4QW, United Kingdom