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Last updated on May 26th, 2025

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743 in Roman Numerals

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Roman numerals are a method 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 more. Here we will discuss Roman numerals, rules, and examples.

743 in Roman Numerals for Vietnamese Students
Professor Greenline from BrightChamps

What is 743 in Roman Numerals?

Royal titles such as Henry I, Henry II, and so on often include Roman numerals. Have you noticed the symbols and wondered what they represent? These are Roman numerals. Early people used fingers, sticks, bones, etc., to count. As life became more complex, a standardized system was needed.

 

The ancient Romans developed the Roman numeral system. We use I (1), V (5), X (10), L (50), C (100), D (500), and M (1000) to count. In Roman numerals, we use DCCXLIII to represent 743, where D is 500, CC is 200, XL is 40, and III is 3.

 

Let’s learn more about Roman numerals and how we write them.743 in roman numerals

Professor Greenline from BrightChamps

Basic Rules for 743 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, VI → V + I → 5 + 1 = 6

 

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 numeral precedes a larger numeral, subtract the smaller from the larger. For example, IV → V - I → 5 - 1 = 4

 

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 don't write VV for 10; instead, we use X. Similarly, 8 is written as VIII, not IIIIIIII.

Professor Greenline from BrightChamps

How to Write 743 in Roman Numerals

Let’s learn how to write 743 in Roman numerals. Follow these methods to write the number in Roman numerals:

 

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

743 in Roman Numeral by Expansion Method

In the expansion method, a number is broken down based on place value. In this section, we will learn how to write 743 in Roman numerals using the expansion method. To write 743 in Roman numerals, follow these steps:

 

Step 1: Break the number based on place value: hundreds, tens, and ones. For 743, we write it as 700 + 40 + 3.

 

Step 2: Convert the number into Roman numerals.

  • 700 in Roman numerals - DCC
     
  • 40 in Roman numerals - XL
     
  • 3 in Roman numerals - III

 

Step 3: Combine the Roman numerals together. Therefore, 743 in Roman numerals is DCC + XL + III = DCCXLIII

Professor Greenline from BrightChamps

743 in Roman Numeral by Grouping Method

When writing a large number in Roman numerals, we group the numbers. To write 743 in Roman numerals, we group 743 as 700 + 40 + 3.

  • 700 in Roman numerals - DCC
     
  • 40 in Roman numerals - XL
     
  • 3 in Roman numerals - III

So, 743 is written as DCCXLIII in Roman numerals.

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Common Mistakes and How to Avoid Them in 743 Roman Numerals

Students often make mistakes when writing numbers in Roman numerals. To master Roman numerals, we can learn a few common mistakes and 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. Moreover, certain numerals like V, L, and D cannot be repeated.

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743 in Roman Numerals Examples

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Max, the Girl Character from BrightChamps

Problem 1

Combine the amounts represented by CCCLXXI and CCCLXXII in Roman numerals.

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The combination of CCCLXXI and CCCLXXII is DCCXLIII.

Explanation

CCCLXXI is 371 and CCCLXXII is 372. Adding these two gives us 371 + 372 = 743. In Roman numerals, 743 is written as DCCXLIII.

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Problem 2

A historian found DCCXLIII old coins and wants to distribute them equally among VII explorers. How many coins does each explorer receive?

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Each explorer receives CVI coins.

Explanation

To find the number of coins each explorer receives, divide DCCXLIII by VII.

DCCXLIII = 743

VII = 7

743 / 7 = 106

106 in Roman Numerals is CVI.

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Max, the Girl Character from BrightChamps

Problem 3

Calculate the difference between M and DCCXLIII in Roman numerals.

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The difference between M and DCCXLIII is CCLVII.

Explanation

M is 1000 and DCCXLIII is 743. Subtracting these gives 1000 - 743 = 257. In Roman numerals, 257 is written as CCLVII.

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Max, the Girl Character from BrightChamps

Problem 4

Write the Roman Numeral for the sum of CCC and CCCCXLIII using the expansion method.

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The Roman numeral for the sum of CCC and CCCCXLIII is DCCXLIII.

Explanation

Step 1: Convert the numbers into Roman numerals.

CCC = 300

CCCCXLIII = 443

Add the numbers together: 300 + 443 = 743.

Using the expansion method: 700 + 40 + 3 = DCCXLIII.

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Max, the Girl Character from BrightChamps

Problem 5

A sculpture weighs DCCXLIII pounds and another weighs CCXL pounds. Find the total weight in Roman numerals.

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The total weight is CMVIII pounds.

Explanation

DCCXLIII is 743 and CCXL is 240. Adding these gives 743 + 240 = 983. In Roman numerals, 983 is written as CMVIII.

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FAQs on 743 in Roman Numerals

1.What is 740 in Roman numerals?

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2.How to write 743 in Roman numerals?

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3.What is 746 in Roman Numerals?

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4.Is DCCXLIII a prime number?

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5.What are the multiples of 743?

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6.How can children in Vietnam use numbers in everyday life to understand 743 in Roman Numerals?

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7.What are some fun ways kids in Vietnam can practice 743 in Roman Numerals with numbers?

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8.What role do numbers and 743 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 743 in Roman Numerals skills?

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Professor Greenline from BrightChamps

Important Glossaries for 743 in Roman Numerals

  • Addition rule: The addition method is used when a larger number is followed by a smaller numeral; here, the values are added. For example, VI = V + I = 5 + 1 = 6
     
  • Grouping method: Here, numbers are grouped based on their place value and then converted into Roman numerals. For example, 743 = 700 + 40 + 3 = DCCXLIII
     
  • Repetition rule: Certain symbols (I, X, C, M) in the Roman numeral system can be repeated only up to three times. For example, XXX = 30 (X is repeated three times to represent 30)
     
  • Subtraction rule: If a smaller numeral precedes a larger numeral, subtract the smaller from the larger. For example, IV = V - I = 4
     
  • Place value: The numerical value that a digit has by virtue of its position in a number, such as hundreds, tens, and ones in the number 743.
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 743 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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