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Last updated on May 26th, 2025

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738 in Roman Numerals

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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.

738 in Roman Numerals for Vietnamese Students
Professor Greenline from BrightChamps

What is 738 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 DCCXXXVIII to represent 738, where D is 500, CC is 200, XXX is 30, and VIII is 8.

 

Let’s learn more about Roman numerals and how we write them.738 in roman numerals

Professor Greenline from BrightChamps

Basic Rules for 738 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, VIII → V + I + I + I → 5 + 1 + 1 + 1 = 8

 

Rule 2: Repetition Method

To write a large number, there are certain Roman Numerals that can be repeated up to three times. For example, XXX → 10 + 10 + 10 = 30

 

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. 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 for 8, we write as VIII, not IIIIIIII.

Professor Greenline from BrightChamps

How to Write 738 in Roman Numerals

Let’s now learn how to write 738 in Roman Numerals. Follow these methods to write the number in Roman Numerals.

 

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

738 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 738 in Roman numerals using the expansion method. To write 738 in Roman Numerals, follow the steps,

 

Step 1: The number is broken based on the place value: ones, tens, hundreds, etc. For 738, we write it as 700 + 30 + 8

 

Step 2: Converting the number into Roman Numerals

  • 700 in Roman Numerals - DCC
     
  • 30 in Roman Numerals - XXX
     
  • 8 in Roman Numerals - VIII

     

Step 3: Combining the Roman Numerals together. Therefore, 738 in Roman Numerals is DCC (700) + XXX (30) + VIII (8) = DCCXXXVIII

Professor Greenline from BrightChamps

738 in Roman Numeral by Grouping Method

When writing a large number into Roman Numerals, we group the numbers. To write 738 in Roman Numerals, we group 738 as 700 + 30 + 8

 

  • 700 in Roman Numerals — DCC
     
  • 30 in Roman Numerals — XXX
     
  • 8 in Roman Numerals — VIII
     

So, 738 is written as DCCXXXVIII in Roman Numerals.

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Common Mistakes and How to Avoid Them in 738 Roman Numerals

Students make mistakes when writing a number in Roman Numerals. To master Roman Numerals, we can learn a few common mistakes and the ways to avoid them.

Mistake 1

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Errors in repetition method

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The repetition method can be confusing for beginners as it states that Roman Numerals cannot be repeated more than three times. In contrast, some of the Roman Numerals, such as V, L, and D, cannot be repeated.

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738 in Roman Numerals Examples

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Max, the Girl Character from BrightChamps

Problem 1

Calculate the sum of the Roman numerals CCCXXXVIII and CD.

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The sum of CCCXXXVIII and CD is DCCXXXVIII.

Explanation

CCCXXXVIII is 338 and CD is 400. Adding these together: 338 + 400 = 738. 738 in Roman numerals can be written as DCCXXXVIII.

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Max, the Girl Character from BrightChamps

Problem 2

A historian found DCCXXXVIII ancient coins and wants to display them in VIII rows equally. How many coins will each row have?

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Each row will have XCII coins.

Explanation

To find the number of coins per row, divide the total number of coins by the number of rows:

DCCXXXVIII / VIII

DCCXXXVIII = 738

VIII = 8

738 / 8 = 92

92 in Roman numerals can be written as XCII.

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Max, the Girl Character from BrightChamps

Problem 3

If you subtract CCCL from DCCXXXVIII, what Roman numeral do you get?

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The result is CCCLXXXVIII.

Explanation

DCCXXXVIII is 738 and CCCL is 350.

Subtracting these: 738 - 350 = 388.

388 in Roman numerals can be written as CCCLXXXVIII.

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Max, the Girl Character from BrightChamps

Problem 4

A puzzle game requires forming the number 738 using Roman numeral tiles. If you already have CDXXXVIII, what numeral do you need to reach 738?

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You need CCC to reach DCCXXXVIII.

Explanation

You have CDXXXVIII which is 438.

To find out what you need to add:

738 - 438 = 300

300 in Roman numerals is CCC.

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Max, the Girl Character from BrightChamps

Problem 5

Write the Roman Numeral for 738 using the expansion method.

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The Roman numeral for 738 is DCCXXXVIII.

Explanation

Using the expansion method: 738 = 700 + 30 + 8

700 = DCC

30 = XXX

8 = VIII

Combine these to get DCCXXXVIII.

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FAQs on 738 in Roman Numerals

1.What is 700 in Roman numerals?

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2.How to write 738 in Roman numerals?

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3.What is 740 in Roman Numerals?

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4.Is DCCXXXVIII a prime number?

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5.What are the multiples of 738?

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6.How can children in Vietnam use numbers in everyday life to understand 738 in Roman Numerals?

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7.What are some fun ways kids in Vietnam can practice 738 in Roman Numerals with numbers?

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8.What role do numbers and 738 in 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 738 in Roman Numerals skills?

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Professor Greenline from BrightChamps

Important Glossaries for 738 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, DCCXXXVIII = DCC + XXX + VIII = 700 + 30 + 8 = 738
     
  • Grouping method: Here the given numbers are grouped based on their place value and then converted into their Roman numerals. For example, 738 = 700 + 30 + 8 = DCCXXXVIII
     
  • Repetition rule: Certain symbols (I, X, C, M) in the Roman numeric system can be repeated only up to three times. For example, XXX = 30 (X is repeated three times to represent the number 30).
     
  • Subtraction rule: The subtraction method is used when a smaller numeral precedes a larger numeral, and the smaller numeral is subtracted from the larger one. For example, IX = 10 - 1 = 9.
     
  • Place value: The numerical value that a digit has by virtue of its position in a number. In Roman numerals, place value determines the grouping of numbers.
Professor Greenline from BrightChamps

About BrightChamps in Vietnam

At BrightChamps, we know numbers are not just figures—they open the door to endless possibilities! Our aim is to help children throughout Vietnam build key math skills, focusing today on the 738 in Roman Numerals with an emphasis on Roman numerals—in a way that is fun, engaging, and easy to grasp. Whether your child is calculating the speed of a roller coaster at Suoi Tien Theme Park, keeping track of scores at a local football match, or managing their allowance for new gadgets, mastering numbers gives them the confidence for everyday tasks. Our interactive lessons make learning straightforward and enjoyable. Recognizing that children in Vietnam have varied learning styles, we customize our approach for each child. From the lively streets of Ho Chi Minh City to the scenic beauty of Ha Long Bay, BrightChamps makes math come alive and exciting across Vietnam. Let’s bring Roman numerals into 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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