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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, use Roman numerals. 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. When life became complex, a standard form was required to count.
Ancient Romans developed 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. In Roman numerals, we use CMLXXI to represent 971, where CM is 900, LXX is 70, and I is 1.
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.
The addition method is used when the smaller number is placed after the larger number. For example, VI → V + I → 5 + 1 = 6
To write a large number, some Roman numerals can be repeated up to three times. For example, XXX → 30.
If a small number precedes a large number in Roman numerals, we subtract the smaller number from the larger number. For example, IX → X - I → 10 - 1 = 9
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 for 8, we write VIII, not IIIIIIII.
Let’s now learn how to write 971 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 971 in Roman numerals using the expansion method. To write 971 in Roman numerals, follow the steps:
Step 1: Break down the number based on place value. Place values are ones, tens, hundreds, etc. For 971, we write it as 900 + 70 + 1
Step 2: Convert the number into Roman numerals
Step 3: Combine the Roman numerals together. Therefore, 971 in Roman numerals is CM (900) + LXX (70) + I (1) = CMLXXI
When writing a number in Roman numerals, we group the number. To write 971 in Roman numerals, we group 971 as 900 + 70 + 1
So, 971 is written as CMLXXI in Roman numerals.
Calculate the quotient of CMLXXI divided by XIII.
A historian discovered MCMXLII coins buried in a field. If each treasure chest can hold CMLXXI coins, how many full treasure chests can be filled?
A builder needs to construct a wall using CMX bricks. If he uses CMLXXI bricks for one section, how many bricks will remain?
What is the sum of DCCXXI and CMLXXI?
Write the Roman Numeral for the result of 1000 minus 29 using the subtraction method.
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.