CXXIV Roman Numerals in Numbers

CXXIV Roman numerals represent the number 124 (one hundred twenty-four). Understanding how to convert Roman numerals to numbers is a key skill for anyone interested in learning this classical numbering system.

In this article, we will explain the process of converting CXXIV Roman numerals into numbers comprehensively. Examples included on this page will help provide a better understanding of solving CXXIV Roman numerals. 



Table of Contents

  • How to Write CXXIV Roman Numerals in Numbers?

  • Roman Numerals Related to CXXIV Roman Numerals

  • Basic Rules of Writing Roman Numerals

  • Examples- CXXIV Roman Numerals

  • Conclusion

  • FAQs on CXXIV Roman Numerals

 

How to Write CXXIV Roman Numerals in Numbers?

To write CXXIV Roman numerals in numbers, we can use two different methods. 

I. Expansion Method

II. Grouping Method

Method 1: Expansion Method

  • Break the CXXIV Roman numerals into parts.

  • Replace each Roman numeral with its numerical value as per place value.

  • Add all of these numbers together.

 

In this method, we have to first write CXXIV in expanded form as  C + X + X + (V – I) 

and then add/subtract each number individually. i.e.,= 100 + 10 + 10 + 4 = 124

 

Method 2: Grouping Method

In the second method, we can pair numbers in groups and then consider them for addition/subtraction. 

 

For instance, CXXIV can be written in groups as 

C + XX + IV

 

Now, replace each numeral with its numerical value and add: 100 + 20 + 4 = 124.

 

Roman Numerals Related to CXXIV Roman Numerals

Number

Expanded Form

Roman Numeral Expression

Final Roman Numeral

120

100 + 10 + 10

C + XX

CXX

121

100 + 10 + 10 + 1

C + XX + I

CXXI

122

100 + 10 + 10 + 1 + 1 

C + XX + I + I

CXXII

123

100 + 10 + 10 + 1 + 1 + 1

C + XX + I + I + I

CXXIII

124

100 + 10 + 10 + (5 – 1) 

C +  XX + (V – 1)

CXXIV

125

100 + 10 + 10 + 5 

C +  XX + V 

CXXV

126

100 + 10 + 10 + (5 + 1) 

C +  XX + (V + I)

CXXVI

127

100 + 10 + 10 + (5 + 1 + 1) 

C +  XX + (V + I + I)

CXXVII

128

100 + 10 + 10 + (5 + 1 + 1 + 1) 

C +  XX + (V + I + I + I)

CXXVIII

129

100 + 10 + 10 + (10 – 1) 

C + XX + (X – I)

CXXIX

130

100 + 10 + 10 + 10

C + X + X + X

CXXX



Basic Rules to Write Roman Numerals 

There are important rules that should be followed to write and convert Roman numerals into numbers correctly. They involve understanding the placement and repetition of letters and symbols. As Roman numerals apply both addition and subtraction to represent numbers, it’s essential to follow the fundamental rules that govern Roman numeral construction to ensure accuracy.

 

  • No numeral can appear more than three times in a row (e.g., XX = 20, but 4 is IV).

  • Smaller numerals before larger ones indicate subtraction (e.g., IX = 9).

  • Smaller numerals after larger ones indicate addition (e.g., VI = 6).

  • Only certain pairs use the subtraction rule, such as:

I before V and X

X before L and C

These basic rules help avoid common mistakes when writing Roman numerals.

 

Examples- CXXIV Roman Numerals

 

1. Write the numerical value of CXXIV Roman numeral.

 

Answer: To write CXXIV Roman numeral in numerical value, we first need to break it into smaller parts and then add them as: C + X + X + (V – 1) = 100 + 10 + 10 + (5 - 1) = 124

 

2. Determine the value of CXXIV – CXX.

 

Answer: We know that, 

CXXIV = C + X + X + IV = 100 + 10 + 10 + 4 =124

CXX = C +  X + X = 100 + 10 + 10 = 120

 

So, CXXIV – CXX = 124 –120 = 4

 

Therefore, CXXIV – CXX = IV

 

3. What is the sum of C + XXIV?

 

Answer: C = 100 and XXIV = 24, So, C + XXIV = CXXIV.

 

Conclusion

Roman numbers are part of an ancient number system that is still in use. It originated in ancient Rome. It uses a combination of letters and specific rules for addition and subtraction to write numbers. By learning these rules and practicing examples, students can easily interpret the Roman numerals in daily life. 

FAQs on CXXIV Roman Numerals

1. Write the numerical value of CXXIV Roman numeral.

Answer: To write CXXIV Roman numeral in numerical value, we first need to break it into smaller parts and then add them as: C + X + X + X + IV = 100 + 10 + 10 + 4 = 124



2. Determine the value of CXX + VI.

Answer: We know that, 

CXX = C + X + X = 100 + 10 + 10 =120

VI = 6

 

So, CXX + VI = 120 + 6 = 126

 

Therefore, CXX + VI = CXXVI



3. What is the sum of C + XXIV?

Answer: C = 100 and XXIV = 24, So, C + XXIV = CXXIV.



4. How to write 100, 500, and 1000 in Roman numerals?

Answer:

100 = C

500 = D

1000 = M

Learn Roman numerals and more interesting math concepts with Orchids The International School.

 

ShareFacebookXLinkedInEmailTelegramPinterestWhatsApp

Admissions Open for

Admissions Open for

Enquire Now

We are also listed in