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Last updated on May 26th, 2025

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MXVIII Roman Numerals

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To meet their daily commerce and administration needs, the ancient Romans developed Roman numerals. It used a combination of seven symbols — I, V, X, L, C, D, and M to represent numbers. Roman numerals were used to record transactions, keep track of data, and label military units. In this topic, we are going to learn about the Roman numeral MXVIII.

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What is MXVIII in Roman Numerals?

Ancient Romans discovered that counting fingers could get very complicated after 10. So to overcome the complexity, the Roman numeric system was developed. This was widely used throughout Europe as a standard writing system until the late Middle Ages. Seven symbols are used to represent numbers in the Roman numeric system — I, V, X, L, C, D, and M. The numerals are made up of different combinations of these symbols. MXVIII in Roman numerals can be written in number form by adding the values of each Roman numeral, i.e. MXVIII = 1018. Let us learn more about the Roman numeral MXVIII, how we write them, the mistakes we usually make, and ways to avoid these mistakes.

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Basic Rules for MXVIII in Roman Numerals

When writing Roman numerals, there are a few rules that we need to follow based on the Roman numerals we are trying to write. In this section, we will learn about the rules when writing Roman numerals and how to represent them. Rule 1: Addition Method: When a larger symbol is followed by a smaller symbol, we add the numerals to each other. For example, in VIII, we have 5 + 3 = 8 Rule 2: Repetition Method: A symbol that is repeated three times in continuation increases the value of the numeral. For example, XXX = 30 Rule 3: Subtraction Method: We use the subtraction method when a larger symbol follows a smaller symbol. For example, XL = 40 (which is 50 – 10). Rule 4: Limitation Rule: Symbols cannot be repeated more than three times, and some symbols, such as V, L, and D cannot be repeated more than once. For example, 10 is represented as X and not VV.

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How to Write MXVIII in Roman Numerals?

Let us learn about how to write MXVIII in Roman numerals. There are two methods that we can use to write Roman numerals: By Expansion Method By Grouping Method

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MXVIII in Roman Numeral by Expansion Method

The breaking down of Roman numerals into parts and then converting them into numerals is what we call the expansion method. The expansion method is the breaking down of Roman numerals into numerical form and adding them to get the final number. Step 1: Break the Roman numerals into parts. Step 2: Now write each of the Roman numerals with its numerical digit in the place value. Step 3: Add the numerals together. For MXVIII, Step 1: First we break the Roman numerals. MXVIII = M + X + V + I + I + I Step 2: Write the Roman numerals for each part The Roman numeral M is 1000 The Roman numeral X is 10 The Roman numeral V is 5 The Roman numeral I is 1 Step 3: Combine all the numbers M + X + V + I + I + I = 1000 + 10 + 5 + 1 + 1 + 1 = 1018. Therefore, the Roman numeral MXVIII is 1018.

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MXVIII in Roman Numeral by Grouping Method

Using subtraction and addition rules, we will apply the grouping method. This means we break the Roman numerals into smaller groups, which makes it easier to work with. This method groups the Roman numerals logically, and then we write the numbers for each group. Step 1: Take the largest number and write the number for that Roman numeral. Step 2: Write the Roman numeral using the subtraction and addition rules. Example: Let’s take the Roman numeral MXVIII. Step 1: The larger Roman numerals are what we will begin with. Once split, the Roman numerals we get are M, X, and VIII. The numeral for M is 1000 The numeral for X is 10 Step 2: Now we need to either add or subtract the smaller number, depending on its place. Here we add VIII to MX and we will get MXVIII. The Roman numeral VIII is 8 Therefore, the numeral of MXVIII is 1018.

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Common Mistakes and How to Avoid Them in MXVIII Roman Numerals

Students can make mistakes when studying Roman numerals. Here are a few common mistakes students make, and ways to avoid them.

Mistake 1

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Mistakes when applying the repetition method

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It can be quite confusing for beginners to remember that Roman numerals cannot be repeated more than three times. Another thing to keep in mind is that Roman numerals such as V, L, and D cannot be repeated. For example, writing LL for 100 is incorrect; the correct answer is C.

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MXVIII Roman Numerals Examples

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Problem 1

Calculate the sum of MXVIII and DCCC. Provide the answer in Roman numerals.

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The sum is MDCCCXVIII

Explanation

First, convert the Roman numerals into decimal form: MXVIII = 1018 DCCC = 800 Now, add the numbers: 1018 + 800 = 1818 Convert the result back into Roman numerals: 1818 = 1000 (M) + 800 (DCCC) + 10 (X) + 8 (VIII) = MDCCCXVIII

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Problem 2

What is the difference between MM - MXVIII? Write the result in Roman numerals.

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The difference is CMLXXXII

Explanation

Convert the Roman numerals into decimal form: MM = 2000 MXVIII = 1018 Subtract the numbers: 2000 - 1018 = 982 Convert 982 into Roman numerals: 982 = 900 (CM) + 80 (LXXX) + 2 (II) = CMLXXXII

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Problem 3

Divide MMXVI by 2 and provide the answer in Roman numerals.

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MLVIII

Explanation

Convert MMXVI into its decimal form: MMXVI = 2016 Divide by 2: 2016 / 2 = 1008 Convert 1008 into Roman numerals: 1008 = 1000 (M) + 8 (VIII) = MVIII

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Problem 4

Find the product of LX and MXVIII.

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The product is LXMCCLXXX

Explanation

Convert the Roman numerals to decimal form: LX = 60 MXVIII = 1018 Multiply the numbers: 60 × 1018 = 61080 Convert the result back to Roman numerals: 61080 = 60000 (L) + 1000 (M) + 80 (LXXX) = LXMCCLXXX

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Problem 5

Convert MXVIII into its decimal form.

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In decimal form, MXVIII is 1018

Explanation

Break down MXVIII into components: M = 1000 X = 10 VIII = 8 Add the values: 1000 + 10 + 8 = 1018

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FAQs on MXVIII in Roman Numerals

1.What is XVIII in Roman numerals?

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2.Is MXVIII a prime number?

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3.What is MXVIII + MXVIII?

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4.What is MXXXVIII?

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5.Subtract XVIII from MXVIII

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6.How can children in Vietnam use numbers in everyday life to understand MXVIII Roman Numerals?

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

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

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

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Important Glossaries for MXVIII in Roman Numerals

Limitation Rule: There are some symbols that cannot be repeated more than once (V, L, D). For example, LVV for 60 is wrong; the correct answer is LX. Place value: The position of a digit in a number; this position determines its value. For example, the number 1 in 1018 is in the thousand's place. Addition Method: A method where a smaller numeral follows a larger numeral, indicating addition. Subtraction Method: A method where a smaller numeral precedes a larger numeral, indicating subtraction. Repetition Method: A method where a numeral is repeated up to three times to increase its value.

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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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Fun Fact

: She loves to read number jokes and games.

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