1990 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 MCMXC to represent 1990, here M is 1000, CM is 900, 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, then it is the addition method. For example, VI → V + I → 5 + 1 = 6.

Rule 2: Repetition Method

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

Rule 3: Subtraction Method

If a small number is followed by a large number in Roman Numerals, we subtract the smaller number from the large number; it is a subtraction method. 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 is written as VIII, not IIIIIIII.

Let’s now learn how to write 1990 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 1990 in Roman numerals using the expansion method. To write 1990 in Roman Numerals, follow the steps,

Step 1: The number is broken based on the place value: ones, tens, hundreds, etc. For 1990, we write it as 1000 + 900 + 90.

Step 2: Converting the number into Roman Numerals 1000 in Roman Numeral — M 900 in Roman Numeral — CM 90 in Roman Numeral — XC

Step 3: Combining the Roman Numerals together. Therefore, 1990 in Roman Numeral is M (1000) + CM (900) + XC (90) = MCMXC.

When writing a large number into Roman Numeral, we group the number. To write 1990 in Roman Numeral, we group 1990 as 1000 + 900 + 90.

• 1000 in Roman Numeral - M

• 900 in Roman Numeral - CM

• 90 in Roman Numeral - XC

So, 1990 is written as MCMXC 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 1990. 

• Addition rule: The addition method is used when a large numeral is followed by a smaller numeral; here, the values are added. For example, VI = V + I = 5 + 1 = 6.

• Grouping method: Here, the given numbers are grouped based on their place value, and then we convert each group into its Roman numeral equivalent. For example, 1990 = 1000 + 900 + 90 = MCMXC.

• Repetition rule: Certain symbols (I, X, C, M) in the Roman numeral system can be repeated only up to three times. For example, III = 3 (I is repeated three times to represent the number 3).

• Subtraction method: The subtraction method is used when a smaller numeral precedes a larger numeral. For example, IX = X - I = 10 - 1 = 9.

• Limitation rule: In Roman numerals, some symbols like V, L, and D cannot be repeated. For example, we use X for 10, not VV.