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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. Roman numerals are used in royal titles, book names, sequences, and more. Here, we will discuss Roman numerals, rules, and examples.
Roman numerals have a rich historical background, often appearing in royal titles, like Henry I, Henry II, and so forth. Have you ever wondered what those symbols represent? They are Roman numerals. In ancient times, people counted using fingers, sticks, bones, etc.
As life became more complex, a standardized counting system was needed, leading to the adoption of Roman numerals. We use symbols such as I (1), V (5), X (10), L (50), C (100), D (500), and M (1000) to represent numbers. In Roman numerals, we use CMLXXVII to represent 977. Here, CM is 900, LXX is 70, and VII is 7.
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, VII → V + II → 5 + 2 = 7
If a small number precedes a larger number in Roman numerals, we subtract the smaller number from the larger number. For example, CM → M - C → 1000 - 100 = 900
Certain Roman numerals can be repeated three times. For example, XXX → 30.
The symbols cannot be repeated more than three times, and some symbols like V, L, and D cannot be repeated. For instance, we do not write VV for 10; instead, we use X.
Let’s now learn how to write 977 in Roman numerals. Follow these methods to write the number in Roman numerals.
In the expansion method, based on the place value, the number is broken down. In this section, we will learn how to write 977 in Roman numerals using the expansion method. To write 977 in Roman numerals, follow these steps:
Step 1: Break the number based on the place value. Place values are ones, tens, hundreds, etc. For 977, we write it as 900 + 70 + 7
Step 2: Convert the numbers into Roman numerals
Step 3: Combine the Roman numerals together. Therefore, 977 in Roman numerals is CM (900) + LXX (70) + VII (7) = CMLXXVII
When writing a large number into Roman numerals, we group the number. To write 977 in Roman numerals, we group 977 as 900 + 70 + 7
So, 977 is written as CMLXXVII in Roman numerals.
Calculate the sum of CDLXXVIII and CDXCIX.
A historian wants to distribute MCMXLIV coins among II historians evenly. How many coins does each historian receive?
If a collector has DXLVIII ancient artifacts and acquires another CDXXIX artifacts, what is the total number of artifacts?
What is the difference between MCMLXXVII and CMXCIX?
Express the number of years between the founding of a city in DCCCXLV and its anniversary in MDCCCXXII in Roman numerals.
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.