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Last updated on February 24th, 2025

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142 in roman numerals

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Foundation
Intermediate
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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.

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What is 142 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. 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 CXLII to represent 142, where C is 100, XL is 40, and II is 2. Let’s learn more about Roman numerals and how we write them.

142 in roman numerals

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Basic Rules for 142 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 a larger number, certain Roman Numerals can be repeated up to three times. III → 3.

 

Rule 3: Subtraction Method

If a small number is followed by a large number in Roman Numerals, we subtract the smaller number from the larger number, called the subtraction method. 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 8 is written as VIII, not IIIIIIII.

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How to Write 142 in Roman Numerals

Let’s now learn how to write 142 in Roman Numerals. Follow these methods to write the number in Roman Numerals.

 

  • By Expansion Method  

 

  • By Grouping Method
     
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142 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 142 in Roman numerals using the expansion method.

 

To write 142 in Roman Numerals, follow the steps:

 

Step 1: Break the number based on the place value. Place values are tens, hundreds, etc.

 

For 142, we write it as 100 + 40 + 2.

 

Step 2: Converting each number into Roman Numerals:

100 in Roman Numerals — C

40 in Roman Numerals — XL

2 in Roman Numerals — II

 

 

Step 3: Combine the Roman Numerals together.

Therefore, 142 in Roman Numerals is C (100) + XL (40) + II (2) = CXLII.

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142 in Roman Numeral by Grouping Method

When writing a large number into Roman Numeral, we group the number. To write 142 in Roman Numerals, we group 142 as 100 + 40 + 2.

 

100 in Roman Numerals — C

40 in Roman Numerals — XL

2 in Roman Numerals — II

Thus, 142 is written as CXLII in Roman Numerals.

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Common Mistakes and How to Avoid Them in 142 Roman Numerals

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142 in Roman Numerals Examples

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Problem 1

A historian is transcribing ancient texts and comes across the number CXXII. If he adds XX to it, what will be the result in Roman numerals?

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Explanation

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Problem 2

An archaeologist finds a collection of MCDXLVIII artifacts and wants to distribute them equally among X groups. How many artifacts will each group receive?

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Explanation

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Problem 3

Calculate the product of XIV and X using Roman numerals.

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Explanation

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Problem 4

A collector has a collection of CXLII coins. If he gives away XXII coins, how many coins will he have left?

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Explanation

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Problem 5

Convert the sum of LXX and LXXII into Roman numerals.

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Explanation

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FAQs on 142 in Roman Numerals

1.What is 40 in Roman numerals?

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2.How to write 142 in Roman numerals?

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3.What is 146 in Roman Numerals?

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4.Is CXLII a prime number?

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5.What are the multiples of 142?

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Important Glossaries for 142 in Roman Numerals

  • Addition Rule: The addition method is used when a larger number is followed by a smaller numeral, and the values are added. For example, VI = V + I = 5 + 1 = 6.

 

  • Grouping Method: Here, the given numbers are grouped based on their place value and then converted into Roman numerals. For example, 142 = 100 + 40 + 2 = CXLII.

 

  • Repetition Rule: Certain symbols (I, X, C, M) in the Roman numeric system can be repeated only up to three times. For example, III = 3 (I is repeated three times to represent the number 3).

 

  • Subtraction Method: The subtraction method is used when a smaller numeral precedes a larger one, indicating subtraction. For example, IX = X  I = 10  1 = 9.

 

  • Limitation Rule: Some symbols like V, L, and D cannot be repeated in the Roman numeral system. For example, instead of writing VV for 10, we use X.
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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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