132 LearnersLast updated on May 26th, 2025
2018 in Roman Numerals
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.
What is 2018 in Roman Numerals?
The royal titles, such as Henry VIII or Louis XIV, are often denoted in Roman numerals. These symbols represent numbers, and the Roman Numeral system was used by the ancient Romans for counting.
The symbols I (1), V (5), X (10), L (50), C (100), D (500), and M (1000) are used. In Roman Numerals, 2018 is represented as MMXVIII, where MM is 2000, X is 10, V is 5, and III is 3.
Let's learn more about Roman numerals and how we write them.
Basic Rules for 2018 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. For example, XVIII → X + V + III → 10 + 5 + 3 = 18.
Rule 2: Repetition Method
To write larger numbers, certain Roman Numerals can be repeated up to three times. For example, III → 3.
Rule 3: Subtraction Method
If a smaller number precedes a larger number, it is subtracted. For example, IV → V - I → 5 - 1 = 4.
Rule 4: Limitation Rule
Symbols cannot be repeated more than three times, and certain symbols like V, L, and D cannot be repeated. For example, we do not write VV for 10; instead, we use X.
How to Write 2018 in Roman Numerals
Let’s now learn how to write 2018 in Roman Numerals. Follow these methods to write the number in Roman Numerals.
- By Expansion Method
- By Grouping Method
2018 in Roman Numeral by Expansion Method
In the expansion method, the number is broken down based on place value. In this section, we will learn how to write 2018 in Roman numerals using the expansion method.
To write 2018 in Roman Numerals, follow the steps:
Step 1: Break the number based on place value, i.e., thousands, hundreds, tens, and units.
For 2018, we write it as 2000 + 10 + 5 + 3.
Step 2: Convert each part into Roman Numerals.
2000 in Roman Numerals — MM
10 in Roman Numerals — X
5 in Roman Numerals — V
3 in Roman Numerals — III
Step 3: Combine the Roman Numerals together.
Therefore, 2018 in Roman Numerals is MM (2000) + X (10) + V (5) + III (3) = MMXVIII.
2018 in Roman Numeral by Grouping Method
When writing a large number in Roman Numerals, we group the number.
To write 2018 in Roman Numerals, we group 2018 as 2000 + 10 + 5 + 3.
2000 in Roman Numerals — MM
10 in Roman Numerals — X
5 in Roman Numerals — V
3 in Roman Numerals — III
So, 2018 is written as MMXVIII in Roman Numerals.
Numbers Related to 2018 in Roman Numerals
Roman Numerals follow a certain pattern, making them look similar. In this section, we will learn some numbers related to the Roman numeral 2018.
| Number | Roman Numeral | Breakdown |
|---|---|---|
| 1000 | M | 1000 |
| 1000 | M | 1000 |
| 10 | X | 10 |
| 5 | V | 5 |
| 1 | I | 1 |
| 1 | I | 1 |
| 1 | I | 1 |
Common Mistakes and How to Avoid Them in 2018 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
Errors in repetition method
The repetition method can be confusing for beginners as it states that Roman Numerals cannot be repeated more than three times. Additionally, some Roman Numerals like V, L, and D cannot be repeated.
2018 in Roman Numerals Examples
Problem 1
Calculate the sum of MMX and VIII.
The sum of MMX and VIII is MMXVIII.
Explanation
To find the sum of MMX and VIII, convert them to Arabic numerals:
MMX = 2010
VIII = 8
The sum is 2010 + 8 = 2018.
2018 in Roman Numerals is MMXVIII.
Problem 2
A library has MMMXVI books and receives II more boxes, each containing I book. How many books are now in the library?
The library now has MMXVIII books.
Explanation
Initially, the library had MMMXVI books (3016 in Arabic numerals).
Receiving II boxes with I book each adds 2 more books.
The new total is 3016 + 2 = 3018.
3018 in Roman Numerals is MMXVIII.
Problem 3
Subtract DCCC from MMXVIII.
The result of subtracting DCCC from MMXVIII is MCCCXVIII.
Explanation
Convert the Roman numerals to Arabic numerals:
MMXVIII = 2018
DCCC = 800
Subtract: 2018 - 800 = 1218
Then convert 1218 to Roman Numerals, which is MCCCXVIII.
Problem 4
Divide MMXVIII by IX and express the quotient in Roman numerals.
The quotient is CCXXIV.
Explanation
Convert the Roman numerals to Arabic numerals:
MMXVIII = 2018
IX = 9
Divide: 2018 / 9 = 224
Convert 224 to Roman Numerals, which is CCXXIV.
Problem 5
Convert the sum of MXVIII and M to Roman numerals.
The sum is MMXVIII.
Explanation
Convert the Roman numerals to Arabic numerals:
MXVIII = 1018
M = 1000
Add: 1018 + 1000 = 2018
Convert 2018 to Roman Numerals, which is MMXVIII.
FAQs on 2018 in Roman Numerals
1.What is 9 in Roman numerals?
2.How to write 2018 in Roman numerals?
3.What is 16 in Roman Numerals?
4.Is MMXVIII a prime number?
5.What are the multiples of 11?
6.How can children in Vietnam use numbers in everyday life to understand 2018 in Roman Numerals?
7.What are some fun ways kids in Vietnam can practice 2018 in Roman Numerals with numbers?
8.What role do numbers and 2018 in Roman Numerals play in helping children in Vietnam develop problem-solving skills?
9.How can families in Vietnam create number-rich environments to improve 2018 in Roman Numerals skills?
Important Glossaries for 2018 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, XVIII = X + V + III = 10 + 5 + 3 = 18.
- Grouping Method: The given numbers are grouped based on their place value and then converted into Roman numerals. For example, 2018 = 2000 + 10 + 5 + 3 = MMXVIII.
- Repetition Rule: Certain symbols (I, X, C, M) in the Roman numeric system can be repeated up to three times. For example, III = 3 (I is repeated three times).
- Subtraction Rule: The subtraction method is used when a smaller numeral precedes a larger numeral. For example, IV = 4 (5 - 1).
- Limitation Rule: Symbols like V, L, and D cannot be repeated. Instead of VV for 10, we use X.
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About BrightChamps in Vietnam
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.
Fun Fact
: She loves to read number jokes and games.
