Table Of Contents
Last updated on March 29th, 2025
Roman numerals are a way of expressing numbers using symbols. The symbols I, V, X, L, C, D, and M are used in this numeral system. Roman Numerals appear in royal titles, book names, sequences, and more. Here, we will discuss Roman Numerals, their rules, and examples.
Royal titles, such as Henry I, Henry II, and so on, often use Roman Numerals. Have you noticed these titles and wondered what the symbols (I, II) represent? Those are Roman Numerals. In ancient times, people used fingers, sticks, bones, etc., to count. As life became more complex, a standard form was required, and the ancient Romans developed the Roman Numeral system. The symbols I (1), V (5), X (10), L (50), C (100), D (500), and M (1000) are used in this system.
In Roman Numerals, we use CCXLVIII to represent 248. Here, C is 100, X is 10, L is 50, V is 5, 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.
Rule 1: Addition Method
The addition method is used when a smaller number is placed after a larger number. For example, VIII → V + I + I + I → 5 + 1 + 1 + 1 = 8.
Rule 2: Repetition Method
To write a larger number, certain Roman Numerals can be repeated up to three times. For example, CCC → 300.
Rule 3: Subtraction Method
When a smaller number precedes a larger number in Roman Numerals, we subtract the smaller number from the larger number. For example, XL → L - X → 50 - 10 = 40.
Rule 4: Limitation Rule
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; instead, we use X. Similarly, 8 is written as VIII, not IIIIIIII.
Let’s now learn how to write 248 in Roman Numerals. Follow these methods to write the number in Roman Numerals.
In the expansion method, based on place value, the number is broken down. Follow these steps:
Step 1: Break down the number based on place value: hundreds, tens, units, etc.
For 248, we write it as 200 + 40 + 8.
Step 2: Convert the numbers into Roman Numerals:
200 in Roman Numeral — CC
40 in Roman Numeral — XL
8 in Roman Numeral — VIII
Step 3: Combine the Roman Numerals together:
Therefore, 248 in Roman Numeral is CC (200) + XL (40) + VIII (8) = CCXLVIII.
When writing a large number into Roman Numerals, we group the number:
248 is grouped as 200 + 40 + 8.
200 in Roman Numeral — CC
40 in Roman Numeral — XL
8 in Roman Numeral — VIII
So, 248 is written as CCXLVIII in Roman Numerals.
A historian finds a manuscript stating that a Roman legion was formed with CCXLVIII soldiers. If each cohort within the legion has XL soldiers, how many full cohorts can be formed?
A collector has a total of CDLXXXVI ancient coins, out of which CCXLVIII are Roman coins. How many are non-Roman coins?
An architect designs a building with CCXLVIII windows. If each floor of the building has XXIV windows, how many floors are there?
A treasure map indicates that the treasure is located CCXLVIII paces north of the starting point and CXXIV paces east. How many paces is the total journey?
A mural depicts CCXLVIII warriors standing in formation. If each row contains XVI warriors, how many complete rows can be formed, and how many warriors will remain unplaced?
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.