918 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. 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 CMXVIII to represent 918. Here, CM is 900, X is 10, and VIII is 8. 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 number has the smaller numeral placed after the larger numeral; then it is the addition method. For example, VIII → V + I + I + I → 5 + 1 + 1 + 1 = 8

Rule 2: Repetition Method

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

Rule 3: Subtraction Method

If a small numeral is followed by a large numeral in Roman Numerals, we subtract the smaller numeral from the large numeral. This is the subtraction method. For example, CM → M - C → 1000 - 100 = 900

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 918 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 918 in Roman numerals using the expansion method. To write 918 in Roman Numerals, follow these steps:

Step 1: The number is broken down based on the place value. Place values are ones, tens, hundreds, etc. For 918, we write it as 900 + 10 + 8

Step 2: Converting the number into Roman Numerals

• 900 in Roman Numerals - CM
   
• 10 in Roman Numerals - X
   
• 8 in Roman Numerals - VIII

Step 3: Combining the Roman Numerals together. Therefore, 918 in Roman Numerals is CM (900) + X (10) + VIII (8) = CMXVIII

When writing a large number into Roman Numerals, we group the number. To write 918 in Roman Numerals, we group 918 as 900 + 10 + 8

• 900 in Roman Numerals - CM
   
• 10 in Roman Numerals - X
   
• 8 in Roman Numerals - VIII

So, 918 is written as CMXVIII 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 918. 

• Addition rule: The addition method is used when a large numeral is followed by a smaller numeral, and here the values are added. For example, VIII = V + I + I + I = 5 + 1 + 1 + 1 = 8
   
• Grouping method: Here, the given numbers are grouped based on their place value and then converted into Roman numerals. For example, 918 = 900 + 10 + 8 = CMXVIII
   
• 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: The subtraction method is used when a smaller numeral precedes a larger numeral. For example, CM = M - C = 1000 - 100 = 900
   
• Place value: This concept helps in breaking down numbers based on thousands, hundreds, tens, and units to convert them into Roman numerals. For example, 918 is broken down into 900, 10, and 8.