490 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. to count earlier. When life became complex, a standard form was required to count.

Ancient Romans used the Roman Numeral system to count. The symbols used in this system are I (1), V (5), X (10), L (50), C (100), D (500), and M (1000). In Roman Numerals, we use CDXC to represent 490, where CD is 400 and XC is 90.

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, VI → V + I → 5 + 1 = 6.

Rule 2: Repetition Method

To write a large number, certain Roman Numerals can be repeated up to 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 large number. 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 DD for 1000; instead, we use M, and 8 is written as VIII, not IIIIIIII.

Let’s now learn how to write 490 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 490 in Roman numerals using the expansion method. To write 490 in Roman Numerals, follow these steps:

Step 1: Break the number based on place value, which is ones, tens, hundreds, etc. For 490, we write it as 400 + 90.

Step 2: Convert each number into Roman Numerals.

• 400 in Roman Numerals - CD
• 90 in Roman Numerals - XC
   

Step 3: Combine the Roman Numerals. Therefore, 490 in Roman Numerals is CD (400) + XC (90) = CDXC.

When writing a large number in Roman Numerals, we group the numbers. To write 490 in Roman Numerals, we group 490 as 400 + 90.

• 400 in Roman Numerals — CD
   
• 90 in Roman Numerals — XC

So, 490 is written as CDXC in Roman Numerals.

Roman Numerals follow a certain pattern that makes them look similar. In this section, we will learn some numbers related to the Roman numeral 490. 

• Addition rule: The addition method is used when a large number is followed by a smaller numeral, and their values are added.
   
• Grouping method: Here, the given numbers are grouped based on their place value, and then we convert each group into its Roman numerals.
   
• Repetition rule: Certain symbols (I, X, C, M) in the Roman numeric system can be repeated only up to three times.
   
• Subtraction rule: The subtraction method is used when a smaller numeral precedes a larger numeral, and the smaller is subtracted from the larger one.
   
• Limitation rule: Certain symbols like V, L, and D cannot be repeated.