105 in Roman Numerals

Royal titles, such as Henry I, Henry II, and so on, often use Roman numerals. Have you noticed these symbols and wondered what they represent? These are Roman numerals. In ancient times, people used fingers, sticks, bones, etc., to count. As life became complex, a standard form was needed for counting. Ancient Romans developed the Roman numeral system for this purpose. The symbols used are I (1), V (5), X (10), L (50), C (100), D (500), and M (1000).

In Roman numerals, we use CV to represent 105, where C is 100, and V is 5. Let’s learn more about Roman numerals and how we write them.
 

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 a smaller number is placed after a larger number. For example, CV → C + V → 100 + 5 = 105

Rule 2: Repetition Method

To write a larger number, certain Roman numerals can be repeated up to three times. For example, CCC → 300.

Rule 3: Subtraction Method

If a smaller number precedes a larger number in Roman numerals, the smaller number is subtracted from the larger number. For example, XC → C - X → 100 - 10 = 90

Rule 4: Limitation Rule

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 VIII, not IIIIIIII.
 

Let’s now learn how to write 105 in Roman numerals. Follow these methods to write the number in Roman numerals.

By Expansion Method
By Grouping Method
 

In the expansion method, based on place value, the number is broken down. In this section, we will learn how to write 105 in Roman numerals using the expansion method.

To write 105 in Roman numerals, follow these steps:

Step 1: Break the number based on place value, such as ones, tens, hundreds, etc.

For 105, we write it as 100 + 5

Step 2: Convert the number into Roman numerals

    100 in Roman numeral — C
    5 in Roman numeral — V

Step 3: Combine the Roman numerals together.

    Therefore, 105 in Roman numerals is C (100) + V (5) = CV
 

When writing a large number into Roman numerals, we group the number.

To write 105 in Roman numerals, we group 105 as 100 + 5

100 in Roman numeral — C
5 in Roman numeral — V

So, 105 is written as CV in Roman numerals.
 

Roman numerals follow a certain pattern, making them look similar. In this section, we will learn some numbers related to the Roman numeral 105.

• Addition rule: The addition method is used when a larger numeral is followed by a smaller one, and their values are added. For example, CV = C + V = 100 + 5 = 105
   
• Grouping method: Here, the given number is grouped based on its place value and then converted into Roman numerals. For example, 105 = 100 + 5 = CV
   
• 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 method: When a smaller numeral precedes a larger one, their values are subtracted. For example, XC = C - X = 100 - 10 = 90
   
• Limitation rule: Some symbols, such as V, L, and D, cannot be repeated, and no symbol can be repeated more than three times.