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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 more. Here we will discuss Roman Numerals, rules, and examples.
Royal titles, such as Henry I, Henry II, and so on, use Roman Numerals. Have you ever wondered what these symbols represent? Those are the Roman Numerals.
In ancient times, people used fingers, sticks, and bones to count. As life became more complex, a standard counting system was needed. Ancient Romans developed the Roman Numeral system. The symbols used are I (1), V (5), X (10), L (50), C (100), D (500), and M (1000).
In Roman Numerals, we represent 658 as DCLVIII, where D is 500, C is 100, L is 50, V is 5, and III is 3. 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, VIII → V + III → 5 + 3 = 8.
Certain Roman Numerals can be repeated up to three times to create larger numbers. III → 3.
If a small number precedes a large number in Roman Numerals, you subtract the smaller number from the larger one. 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 don't write VV for 10 but use X, and for 8, we write VIII, not IIIIIIII.
Let’s now learn how to write 658 in Roman Numerals. Follow these methods to write the number in Roman Numerals.
In the expansion method, the number is broken down based on place value. In this section, we will learn how to write 658 in Roman numerals using the expansion method. To write 658 in Roman Numerals, follow these steps:
Step 1: Break the number based on place value. The place values are ones, tens, hundreds, etc. For 658, we write it as 500 + 100 + 50 + 8.
Step 2: Convert the numbers into Roman Numerals.
Step 3: Combine the Roman Numerals together. Therefore, 658 in Roman Numerals is D (500) + C (100) + L (50) + VIII (8) = DCLVIII.
When writing a large number into Roman Numerals, we group the number. To write 658 in Roman Numerals, group 658 as 500 + 100 + 50 + 8.
So, 658 is written as DCLVIII in Roman Numerals.
A historian discovers DCLVIII ancient coins and wants to divide them equally among VIII museums. How many coins does each museum receive?
A researcher is cataloging artifacts and notes that there are DCLVIII artifacts on one shelf and CCCXLII on another. How many artifacts are there in total?
A collector sells CD artifacts but originally had DCLVIII. How many artifacts does the collector have now?
Convert the year 658 AD into Roman numerals using the expansion method.
A library receives DCLVIII new books and places them in XIII sections equally. How many books are in each section?
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.