987 in Roman Numerals

Roman numerals have been in use since the time of the ancient Romans. They provided a standard way for counting and recording numbers.

The symbols used are I (1), V (5), X (10), L (50), C (100), D (500), and M (1000). These symbols can be combined to represent any number. For example, 987 in Roman numerals is represented as CMLXXXVII, where CM is 900, LXXX is 80, and VII is 7.

Let's learn more about Roman numerals and how they are written.

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

When a smaller numeral appears after a larger numeral, you add the values. For example, VII → V + II → 5 + 2 = 7

Rule 2: Repetition Method

Some Roman numerals can be repeated up to three times to form other numbers. For instance, III → 3.

Rule 3: Subtraction Method

When a smaller numeral appears before a larger numeral, you subtract the smaller value. For example, IX → X - I → 10 - 1 = 9

Rule 4: Limitation Rule

Roman numerals cannot be repeated more than three times in a row, and some numerals like V, L, and D cannot be repeated.

Let’s learn how to write 987 in Roman numerals using two methods:

• By Expansion Method
• By Grouping Method

In the expansion method, the number is broken down based on place value. Here is how to write 987 in Roman numerals using this method:

Step 1: Break down the number based on place value. 987 = 900 + 80 + 7

Step 2: Convert each number into Roman numerals.

• 900 in Roman numeral is CM
   
• 80 in Roman numeral is LXXX
   
• 7 in Roman numeral is VII

Step 3: Combine the Roman numerals. Therefore, 987 in Roman numerals is CM (900) + LXXX (80) + VII (7) = CMLXXXVII

When writing a large number in Roman numerals, we group the number: 987 can be grouped as 900 + 80 + 7

• 900 in Roman numeral - CM
   
• 80 in Roman numeral - LXXX
   
• 7 in Roman numeral - VII

So, 987 is written as CMLXXXVII in Roman numerals.

Roman numerals follow a certain pattern, making them appear similar. In this section, we will learn some numbers related to the Roman numeral 987:

• Addition rule: If a smaller numeral appears after a larger numeral, add them. For example, VII = V + II = 5 + 2 = 7.
   
• Grouping method: Numbers are grouped based on their place value, then converted to Roman numerals. For example, 987 = 900 + 80 + 7 = CMLXXXVII.
   
• Repetition rule: Certain symbols (I, X, C, M) can be repeated up to three times. For example, III = 3.
   
• Subtraction method: If a smaller numeral precedes a larger numeral, subtract them. For example, IX = 10 - 1 = 9.
   
• Limitation rule: Symbols cannot be repeated more than three times in a row. For example, we use XL for 40, not XXXX.