Table Of Contents
Last updated on March 24th, 2025
Roman numerals are the 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 to count using fingers, sticks, bones, etc. 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 XX with a line over it to represent 20000, indicating that the number is multiplied by 1000. 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, then it is the addition method. For example, VI → V + I → 5 + 1 = 6
To write a large number, there are certain Roman Numerals that can be repeated up to three times. III → 3.
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, IV → V - I → 5 - 1 = 4
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 20000 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 20000 in Roman numerals using the expansion method. To write 20000 in Roman Numerals, follow these steps:
Step 1: Break the number based on its place value. The place values are ones, tens, hundreds, thousands, etc. For 20000, we represent it as 20 × 1000.
Step 2: Convert the number into Roman Numerals.
Step 3: Combine the Roman Numerals together. Therefore, 20000 in Roman Numeral is XX (20) with a line over it indicating 20000.
When writing a large number into Roman Numeral, we group the number. To write 20000 in Roman Numeral, we group 20000 as 20 × 1000.
So, 20000 is written as XX with a line over it in Roman Numerals.
A historian wants to archive MMMCMXC articles into groups of XXV. How many groups will be formed?
A collector has MMXX stamps and decides to buy more until he reaches XX thousand stamps. How many more stamps does he need?
An architect designs a monument that will be XX meters high. If the budget allows for it to be increased by MM meters, what will be the monument's total height in meters?
A library has XX thousand books, and a new shipment adds M more books. What's the new total number of books in Roman numerals?
Calculate the difference between XX thousand and MMXVIII using 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.