Last updated on May 26th, 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. 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 DXIX to represent 519, where D is 500, X is 10, and IX is 9.
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, DX → D + X → 500 + 10 = 510.
Rule 2: Repetition Method
To write a larger number, there are certain Roman Numerals that can be repeated 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. 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. For 8, we write VIII, not IIIIIIII.
Let’s learn how to write 519 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 519 in Roman numerals using the expansion method. To write 519 in Roman Numerals, follow the steps,
Step 1: Break the number based on the place value. Place value that is ones, tens, hundreds, etc. For 519, we write it as 500 + 10 + 9.
Step 2: Convert the numbers into Roman Numerals
Step 3: Combine the Roman Numerals together. Therefore, 519 in Roman Numeral is D (500) + X (10) + IX (9) = DXIX.
When writing a large number into Roman Numerals, we group the number. To write 519 in Roman Numeral, we group 519 as 500 + 10 + 9.
So, 519 is written as DXIX in Roman Numerals.
Students make mistakes when writing a number in Roman Numerals. To master Roman Numerals, we can learn a few common mistakes and the ways to avoid them.
Convert the year DXXIX to its equivalent in modern numbers.
The year DXXIX is equivalent to 529 in modern numbers.
D = 500, XX = 20, IX = 9. Therefore, DXXIX = 500 + 20 + 9 = 529.
A historian finds a document stating that a city was founded DXX years after the fall of a previous empire. If the empire fell in the year 11 BC, in what year AD was the city founded?
The city was founded in the year 509 AD.
The empire fell in 11 BC, and the city was founded DXX (520) years later. Since there is no year 0, we transition directly from 1 BC to 1 AD. 11 BC to 1 AD is a span of 11 years. Therefore, 520 - 11 = 509 AD.
If a Roman senator received a total of DXXXV coins over a period of 5 years, how many coins did he receive per year?
He received CVII coins per year.
To find the number of coins received per year, divide the total number of coins by the number of years.
DXXXV = 535
535 / 5 = 107
107 in Roman Numerals can be written as CVII.
During a restoration project, archaeologists discovered that a structure was rebuilt in the year CDXIV. How many years ago was that from the year 933 AD?
The structure was rebuilt 519 years ago.
CDXIV = 414. The difference between 933 and 414 is 933 - 414 = 519.
A collection of ancient texts was found, with one text marked as being transcribed in the year DXXVIII. If another text was transcribed XI years after this, what is the year of the second transcription?
The second transcription was in the year DXXXIX.
DXXVIII = 528. Adding XI (11) to this gives 528 + 11 = 539.
539 in Roman Numerals is DXXXIX.
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.