roman numerals


Definition of Roman Numerals

  • The system of Roman numerals is numeral system used by the ancient Romans.
  • Roman numerals are the symbols used by the ancient Romans to represent numbers.

Examples of Roman Numerals

  • Following are the basic symbols and the numbers they represent in the Roman numeral system:
    I = 1, V = 5, X = 10, L = 50, C = 100, D = 500, M = 1,000.
  • The other numbers in the Roman numeral system are obtained by placing these basic symbols beside each other.
    For example, XV = 10 + 5 = 15
    IX = 10 – 1 = 9
    VI = 5 + 1 = 6

Solved Example on Roman Numerals

Which of the following numbers can be represented as a Roman numeral using the letters V and I? 
Choices:
A. 3
B. 9
C. 10
D. 4
Correct Answer: D
Solution:
Step 1: Considering choice A, 4 = 5 - 1 = IV
Step 2: Considering choice B, 3 = 1 + 1 + 1 = III
Step 3: Considering choice C, 9 = 10 - 1 = IX
Step 4: Considering choice D, 10 = X
Step 5: So, the number that can be represented as a Roman numeral using the letters V and I is 4.

Related Terms for Roman Numerals

  • Numeral system
  • Symbol