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 Icon115 Learners

Last updated on February 25th, 2025

Math Whiteboard Illustration

818 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. They are used in royal titles, book names, sequences, and more. Here, we will discuss Roman Numerals, their rules, and examples.

Professor Greenline from BrightChamps

What is 818 in Roman Numerals?

Royal titles, such as Henry I, Henry II, and so on, use Roman Numerals. Have you ever noticed these symbols and wondered what they represent? They are part of the Roman Numeral system, which was developed as a standard counting method when life became more complex. Ancient Romans used symbols like I (1), V (5), X (10), L (50), C (100), D (500), and M (1000) to count.

 

In Roman Numerals, we use DCCCXVIII to represent 818: D (500), CCC (300), X (10), and VIII (8). Let’s learn more about Roman numerals and how to write them.

818 in roman numerals

Professor Greenline from BrightChamps

Basic Rules for 818 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 smaller numbers are placed after larger numbers. For example, DCCCXVIII → D + CCC + X + VIII → 500 + 300 + 10 + 8 = 818.

 

Rule 2: Repetition Method

Some Roman Numerals can be repeated up to three times to form larger numbers. For example, CCC → 300.

 

Rule 3: Subtraction Method

When a smaller number precedes a larger number, it is subtracted. For example, IX → X - I → 10 - 1 = 9.

 

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 won’t write DDD for 1500; instead, we use M and D.

Professor Greenline from BrightChamps

How to Write 818 in Roman Numerals

Let’s learn how to write 818 in Roman Numerals using different methods:

 

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

818 in Roman Numeral by Expansion Method

In the expansion method, a number is broken down based on place value. Here’s how to write 818 in Roman numerals using this method:

 

Step 1: Break down 818 based on place value: 800 + 10 + 8.

 

Step 2: Convert each number into Roman Numerals.

  • 800 in Roman Numerals - DCCC
     
  • 10 in Roman Numerals - X
     
  • 8 in Roman Numerals - VIII

 

Step 3: Combine the Roman Numerals: Therefore, 818 in Roman Numerals is DCCC (800) + X (10) + VIII (8) = DCCCXVIII.

Professor Greenline from BrightChamps

818 in Roman Numeral by Grouping Method

When writing large numbers in Roman Numerals, group the numbers. To write 818 in Roman Numerals, group it as 800 + 10 + 8.

 

  • 800 in Roman Numerals - DCCC
     
  • 10 in Roman Numerals - X
     
  • 8 in Roman Numerals - VIII

 

So, 818 is written as DCCCXVIII in Roman Numerals.

Max Pointing Out Common Math Mistakes

Common Mistakes and How to Avoid Them in 818 Roman Numerals

Max from BrightChamps Saying "Hey"

818 in Roman Numerals Examples

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

Problem 1

Calculate the difference between DCCCXVIII and CCXLIV.

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 historian discovers a chest with DCCCXVIII coins and wants to distribute them equally among XLVI people. How many coins does each person 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 3

If a library adds CCLXXII new books to their collection of DCCCXVIII books, what is the total number of books now?

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

What is the quotient when DCCCXVIII is divided by IX?

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

Convert the sum of DCCCXVIII and CLXII into Roman Numerals using the expansion method.

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 818 in Roman Numerals

1.What is 9 in Roman Numerals?

Math FAQ Answers Dropdown Arrow

2.How to write 818 in Roman Numerals?

Math FAQ Answers Dropdown Arrow

3.What is 16 in Roman Numerals?

Math FAQ Answers Dropdown Arrow

4.Is DCCCXVIII a prime number?

Math FAQ Answers Dropdown Arrow

5.What are the multiples of 818?

Math FAQ Answers Dropdown Arrow
Professor Greenline from BrightChamps

Important Glossaries for 818 in Roman Numerals

  • Addition rule: Used when a larger numeral is followed by a smaller one, and their values are added. For example, DCCCXVIII = D + CCC + X + VIII = 818.

 

  • Grouping method: Numbers are grouped based on their place value and converted into Roman numerals. For example, 818 = 800 + 10 + 8 = DCCCXVIII.

 

  • Repetition rule: Certain symbols (I, X, C, M) in the Roman numeral system can be repeated up to three times. For example, CCC = 300 (C repeated three times).

 

  • Subtraction rule: Used when a smaller numeral precedes a larger one, subtracting the smaller from the larger. For example, IX = X - I = 9.

 

  • Place value: Refers to the value of a digit based on its position within a number. For example, in 818, the place values are 800, 10, and 8.
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