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Last updated on February 25th, 2025
Roman numerals are a way of expressing numbers using symbols. I, V, X, L, C, D, and M are the symbols we use. Roman numerals are used in royal titles, book names, sequences, and so on. Here we will be discussing Roman numerals, rules, and examples.
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 fingers, sticks, bones, etc., to count. As 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 MCMLXXXIV to represent 1984. Here, M is 1000, CM is 900, L is 50, XXX is 30, and IV is 4. 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, XVI → X + V + I → 10 + 5 + 1 = 16. Rule 2: Repetition Method To write a large number, certain Roman numerals can be repeated up to three times. For example, XXX → 30. Rule 3: Subtraction Method If a small number is followed by a large number in Roman numerals, the smaller number is subtracted from the larger number. For example, IV → V - I → 5 - 1 = 4. Rule 4: Limitation Rule Symbols cannot be repeated more than three times, and some symbols like V, L, and D cannot be repeated. For example, we write 10 as X, not VV, and 8 as VIII, not IIIIIIII.
Let’s now learn how to write 1984 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 1984 in Roman numerals using the expansion method. To write 1984 in Roman numerals, follow the steps: Step 1: Break the number based on place value. 1984 = 1000 + 900 + 80 + 4. Step 2: Convert the number into Roman numerals. 1000 in Roman numeral — M 900 in Roman numeral — CM 80 in Roman numeral — LXXX 4 in Roman numeral — IV Step 3: Combine the Roman numerals together. Therefore, 1984 in Roman numerals is M + CM + LXXX + IV = MCMLXXXIV.
When writing a large number into Roman numerals, we group the number. To write 1984 in Roman numerals, we group 1984 as 1000 + 900 + 80 + 4. 1000 in Roman numeral — M 900 in Roman numeral — CM 80 in Roman numeral — LXXX 4 in Roman numeral — IV So, 1984 is written as MCMLXXXIV in Roman numerals.
A historian found a manuscript dated MCMLXXXIV. How many years ago was the manuscript written if the current year is MMXXIII?
A collector has a coin dated MCMLXXXIV. If they add a coin from MCMXLIV and another from MMX, what is the sum of the years on all three coins?
A puzzle requires you to rearrange the numerals in MCMLXXXIV to form the smallest possible year. What is the year and its Roman numeral form?
If the ancient calendar marks a festival every MM years starting from year 0, when is the next festival year after MCMLXXXIV?
A novel mentions two significant years: MCMLXXXIV and MMXIX. What is the difference between these years?
Addition Rule: The addition method is used when a larger numeral is followed by a smaller one, and their values are added. For example, XVI = X + V + I = 16. Grouping Method: Here, the given number is grouped based on its place value, and then each group is converted into its Roman numerals. For example, 1984 = 1000 + 900 + 80 + 4 = MCMLXXXIV. Repetition Rule: Certain symbols (I, X, C, M) in the Roman numeral system can be repeated only up to three times. For example, XXX = 30 (X is repeated three times). Subtraction Rule: The subtraction method is used when a smaller numeral precedes a larger numeral. For example, IV = V - I = 4. Limitation Rule: Certain symbols like V, L, and D cannot be repeated. For example, V is 5, and we don't write VV for 10; instead, we use X.
Hiralee Lalitkumar Makwana has almost two years of teaching experience. She is a number ninja as she loves numbers. Her interest in numbers can be seen in the way she cracks math puzzles and hidden patterns.
: She loves to read number jokes and games.