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Last updated on February 24th, 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, often employ Roman numerals. Have you noticed these titles and wondered what these symbols (I and II) represented? Those are Roman Numerals.
Earlier civilizations used fingers, sticks, bones, etc., to count. As life became more complex, a standard form was required for counting. Ancient Romans used the Roman Numeral system. The symbols I (1), V (5), X (10), L (50), C (100), D (500), and M (1000) are used for this purpose.
In Roman Numerals, we use DCCLXXV to represent 775, where D is 500, C is 100, L is 50, X is 10, and V is 5. 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, XV → X + V → 10 + 5 = 15
To write a large number, some Roman Numerals can be repeated up to three times. For example, XXX → 30.
If a smaller number is followed by a larger number, it is a subtraction method. 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 775 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 775 in Roman numerals using the expansion method. To write 775 in Roman Numerals, follow the steps:
Step 1: Break the number based on the place value. Place value refers to ones, tens, hundreds, etc. For 775, we write it as 700 + 70 + 5
Step 2: Converting the number into Roman Numerals
Step 3: Combining the Roman Numerals together. Therefore, 775 in Roman Numerals is DCC (700) + LXX (70) + V (5) = DCCLXXV
When writing a large number into Roman Numerals, we group the number. To write 775 in Roman Numerals, we group 775 as 700 + 70 + 5
So, 775 is written as DCCLXXV in Roman Numerals.
Calculate the quotient of DCCLXXV divided by V.
A historian finds DCCCL books and decides to distribute them equally among C students. How many books does each student receive?
Find the sum of DCCLXXV and XLV.
What is the difference between DCCC and DCCLXXV?
Write the Roman numeral for the sum of 375 and 400 using the expansion 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.