CXXVI Roman Numerals: Rules, Solved Examples & Practice Questions

CXXVI Roman numeral represent number 126. It is formed by combining the four basic roman numerals: C, X, V and I where C = 100, X = 10, V = 5 and I = 1. Symbols in CXXVI Roman numerals follow the addition rule of Roman numerals to represent the value 126. Learning Roman numerals CXXVI will help you to connect the ancient history to the modern number system. It will also make number learning more engaging and meaningful.

Let’s start by learning to read, write, and convert CXXVI Roman Numerals in numbers with clear examples.

Table of Contents

How to Write CXXVI Roman Numeral in Numbers?

To convert Roman numerals CXXVI to numbers, separate the symbols and apply Roman numeral rules.

Given: CXXVI Roman numeral
Symbols Used: C = 100, X = 10, V = 5 and I = 1

Step-by-Step Process:

  1. Write each symbol according to its value: CXXVI = C + X + X + V + I.

  2. Replace them with respective numbers and add the values together: 

100 + 10 + 10 + 5 + 1 = 126

Hence, CXXVI = 126 in numbers.

Numbers Related to CXXVI Roman Numerals

Roman Numeral

Expansion

Calculation

Number

CXXV

C + X + X + V

100 + 10 + 10 + 5

125

CXXVI

C + X + X + V + I

100 + 10 + 10 + 5 + 1

126

CXXVII

C + X + X + V + I + I

100 + 10 + 10 + 5 + 1 + 1

127

CXXVIII

C + X + X + V + I + I + I

100 + 10 + 10 + 5 + 1 + 1 + 1

128

CXXIX

C  + X + X + IX

100 + 10 + 10 + (10 – 1)

129

CXXX

C + X + X + X

100 + 10 + 10 + 10

130

 

Basic Rules to Write Roman Numerals

There are 4 fundamental Roman numerals rules that we need to follow for writing or converting Roman numbers correctly.

  • Addition Rule: When smaller numerals follow larger ones, their values are added.
    Example: VI = 5 + 1 = 6

  • Subtraction Rule: When a smaller numeral comes before a larger one, it is subtracted. 
    Example: IX = 10 − 1 = 9

  • Repetition Rule: Symbols I, X, C, and M can be repeated up to three times.
    Example: XXX = 30

  • Non-Repetition Rule: Symbols V, L, and D cannot be repeated.

Solved Examples on CXXVI Roman Numeral

Example 1: Calculate the value of CXX + VI in Roman numerals.

Solution: To find the value of CXX + VI, let’s convert it first into numbers:

  • CXX = C + X + X = 100 + 10 + 10 = 120
  • VI = V + I = 5 + 1 = 6

Now, replace each value in expression as its numerical equivalent to find the sum:
CXX + VI = 120 + 6
CXX + VI = 126
126 in Roman numerals is CXXVI
So, CXX + VI = CXXVI

Example 2: Write 126 in Roman numerals.

Solution: To write 126 in Roman numerals, we first have to expand it and then replace each number with the respective symbol as:
126 = 100 + 10 + 10 + 5 + 1 
126 = C+ X + X + V + I
126 = CXXVI
Hence, 126 = CXXVI

Example 3: Find the value of CXXX – IV in Roman numerals.

Solution: To find the value of CXXX – IV in Roman numerals, first convert it into numbers: 

  • CXXX = 100 + 10 + 10 + 10 = 130
  • IV = 4

Now, replace each value in expression with its numerical equivalent to find the difference:

CXXX – IV = 130 – 4
CXXX – IV = 126
126 in Roman numerals is CXXVI
CXXX – IV = CXXVI


Example 4:
Find the value of CX + XVI in Roman numerals.

Solution: To find the value of CX + XVI, first convert it into numbers:

CX = C + X = 100 + 10 = 110
XVI = X + V + I = 10 + 5 + 1 = 16

Now, replace each value in the expression with its numerical equivalent to find the sum:

CX + XVI = 110 + 16
CX + XVI = 126

126 in Roman numerals is CXXVI

So, CX + XVI = CXXVI


Example 5:
Find the value of CL − XXIV in Roman numerals.

Solution: To find the value of CL − XXIV, first convert it into numbers:

CL = C + L = 100 + 50 = 150
XXIV = X + X + (V − I) = 10 + 10 + 4 = 24

Now, replace each value in the expression with its numerical equivalent to find the difference:

CL − XXIV = 150 − 24
CL − XXIV = 126

126 in Roman numerals is CXXVI

So, CL − XXIV = CXXVI

Practice Questions on CXXVI Roman Numeral

  1. Choose the correct answer: CXXVI = ?
    (a) 116
    (b) 126
    (c) 136
  2. Fill in the blanks: CXXVI = C + XX + ___
  3. True or False: CXXVI = 100 + 20 + 6
  4. Complete the pattern: CXX, CXXIII, CXXVI, ___, ___
  5. Find the missing numeral: CXXVI − ___ = C
  6. Choose the correct breakdown: CXXVI =
    (a) 100 + 20 + 6
    (b) 100 + 10 + 16
    (c) 120 + 5 + 1
  7. A class has CXXVI students. If X students leave, how many remain? Write in Roman numerals.
  8. What is the Roman numeral just after CXXVI?
  9. Correct the statement: CXXVI = C + XV + I. Is it correct? If not, correct it.
  10. Rearrange to form the correct numeral for 126: IXXCVI


Conclusion

Ancient Romans used a unique number system called Roman numerals centuries ago. We can still see the Roman numerals used around us in many things, including clocks, books, movies, etc. Converting Roman numerals into numbers is an important skill. By learning to convert CXXVI Roman numerals, you can convert Roman numerals easily.

Frequently Asked Questions on CXXVI Roman Numerals

1. What is the value of CXXVI in number?

CXXVI is equal to 126 in Hindu-Arabic numerals.

2. How is 126 written in Roman numerals?

126 is written as CXXVI in Roman numerals.

3. What does each letter in CXXVI represent?

C = 100, X = 10, V = 5 and I = 1.  All these symbols follow the addition rule of Roman numerals to form CXXVI So, CXXVI = C(100) + X(10) + X(10) + V(5) + I(1) = 126

4. What comes after CXXVI in Roman numerals?

CXXVII (127) comes after CXXVI (126).

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