Roman Numerals

The video provides an introduction to Roman numerals, covering their basic symbols, formation rules, and representations up to 1,000.

Core Symbols and Their Values

Roman numerals are represented by specific letters that correspond to Hindu-Arabic numbers:

• I: 1
• V: 5
• X: 10
• L: 50
• C: 100
• D: 500
• M: 1,000
   

Rules for Forming Numbers

• Addition: Placing a numeral of equal or lesser value after another adds them together. For example, II is 1 + 1 (2), and VI is 5 + 1 (6).
   
• Subtraction: When a smaller numeral precedes a larger one, it is subtracted from the second numeral. For example, IV is 5 minus 1 (4), and IX is 10 minus 1.
   
• Repetition: Numbers like 20 (XX) and 30 (XXX) are formed by repeating the symbol for 10.
   

Examples of Common Conversions