425 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 CDXXV to represent 425, where CD is 400, XX is 20, 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 the smaller number is placed after the larger number. For example, VI → V + I → 5 + 1 = 6

Rule 2: Repetition Method

To write a large number, certain Roman Numerals can be repeated three times. III → 3.

Rule 3: Subtraction Method

If a small number precedes a large number in Roman Numerals, we subtract the smaller number from the larger. 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 we write as VIII, not IIIIIIII.

Let’s now learn how to write 425 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 425 in Roman numerals using the expansion method. To write 425 in Roman Numerals, follow the steps:

Step 1: Break the number based on the place value. Place values include ones, tens, hundreds, etc. For 425, we write it as 400 + 20 + 5.

Step 2: Convert the number into Roman Numerals

400 in Roman Numeral - CD

20 in Roman Numeral - XX

5 in Roman Numeral - V

Step 3: Combine them together. Therefore, 425 in Roman Numerals is CD (400) + XX (20) + V (5) = CDXXV.

When writing a large number into Roman Numerals, we group the number. To write 425 in Roman Numerals, we group 425 as 400 + 20 + 5

• 400 in Roman Numeral - CD
   
• 20 in Roman Numeral - XX
   
• 5 in Roman Numeral - V

So, 425 is written as CDXXV 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 425.

• Addition rule: The addition method is used when a large number is followed by a smaller numeral, and the values are added. For example, XVI = X + V + I = 10 + 5 + 1 = 16

• Grouping method: Here, the given numbers are grouped based on their place value and then converted into Roman numerals. For example, 425 = 400 + 20 + 5 = CDXXV

• 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 rule: When a smaller numeral precedes a larger one, the smaller is subtracted from the larger. For example, IX = X - I = 9.

• Expansion method: This method involves breaking down a number by its place values and converting each into Roman numerals. For instance, 425 = 400 + 20 + 5 = CDXXV.