125 in Roman Numerals

Roman numerals are used in various contexts, such as royal titles like Henry I, Henry II, and so on. You might have noticed the numerals and wondered what these symbols (I, II) represented. Those are Roman numerals. In ancient times, people counted using fingers, sticks, bones, etc. As life grew more complex, a standard form was required for counting. The ancient Romans used the Roman numeral system for this purpose. The symbols I (1), V (5), X (10), L (50), C (100), D (500), and M (1000) are used to represent numbers.

In Roman numerals, we use CXXV to represent 125. Here, C is 100, X is 10, another X is 10, 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, CXXV → C + X + X + V → 100 + 10 + 10 + 5 = 125.

Rule 2: Repetition Method

To write a large number, certain Roman numerals can be repeated up to three times. For example, XXX → 30.

Rule 3: Subtraction Method

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

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. For 8, we write VIII, not IIIIIIII.

Let’s now learn how to write 125 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 the place value, the number is broken down. In this section, we will learn how to write 125 in Roman numerals using the expansion method.

To write 125 in Roman numerals, follow the steps:

Step 1: Break down the number based on place value. For 125, we write it as 100 + 20 + 5.

Step 2: Convert the numbers into Roman numerals:
 100 in Roman numeral — C
 20 in Roman numeral — XX
 5 in Roman numeral — V

Step 3: Combine the Roman numerals together. Therefore, 125 in Roman numeral is C (100) + XX (20) + V (5) = CXXV.

When writing a large number in Roman numerals, we group the number. To write 125 in Roman numerals, we group 125 as 100 + 20 + 5:
 100 in Roman numeral — C
 20 in Roman numeral — XX
 5 in Roman numeral — V

So, 125 is written as CXXV 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 125:

• Addition rule: The addition method is used when a large number is followed by a smaller numeral; here, the values are added. For example, CXXV = C + XX + V = 100 + 20 + 5 = 125.

• Grouping method: Here, the given numbers are grouped based on their place value and then converted into Roman numerals. For example, 125 = 100 + 20 + 5 = CXXV.

• 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 the number 30).

• Subtraction rule: The subtraction method is used when a smaller number precedes a larger one, and the smaller value is subtracted from the larger. For example, XC = 90.

• Limitation rule: Some symbols cannot be repeated more than three times, and certain symbols like V, L, and D cannot be repeated at all.