Converting Numbers to Roman Numerals

Converting Numbers to Roman Numerals

• Roman numerals use a combination of letters to represent numbers
• Each letter has a specific value:
  • I = 1
  • V = 5
  • X = 10
  • L = 50
  • C = 100
  • D = 500
  • M = 1000
• To convert a number to Roman numerals, break it down into its place values (hundreds, tens, units) and add the corresponding Roman numeral values

Hundreds

• Hundreds place: represents groups of 100
• In Roman numerals, hundreds are represented by the letter C
• Examples:
  • 100 = C
  • 200 = CC
  • 300 = CCC
  • 400 = CD (400 = 100 + 100 + 100 + 100, but in Roman numerals, 400 is written as CD, where D = 500 and C = 100, so CD = 500 - 100 = 400)

Tens

• Tens place: represents groups of 10
• In Roman numerals, tens are represented by the letter X
• Examples:
  • 10 = X
  • 20 = XX
  • 30 = XXX
  • 40 = XL (40 = 10 + 10 + 10 + 10, but in Roman numerals, 40 is written as XL, where L = 50 and X = 10, so XL = 50 - 10 = 40)

Units

• Units place: represents individual units
• In Roman numerals, units are represented by the letter I
• Examples:
  • 1 = I
  • 2 = II
  • 3 = III
  • 4 = IV (4 = 1 + 1 + 1 + 1, but in Roman numerals, 4 is written as IV, where V = 5 and I = 1, so IV = 5 - 1 = 4)

Converting Numbers to Roman Numerals

• Roman numerals use a combination of letters to represent numbers, with each letter having a specific value: I (1), V (5), X (10), L (50), C (100), D (500), and M (1000)
• To convert a number to Roman numerals, break it down into its place values (hundreds, tens, units) and add the corresponding Roman numeral values

Place Values

• Hundreds place: represents groups of 100, denoted by the letter C
• Tens place: represents groups of 10, denoted by the letter X
• Units place: represents individual units, denoted by the letter I

Converting Numbers

• 100 = C
• 200 = CC
• 300 = CCC
• 400 = CD (subtractive notation: 500 - 100 = 400)
• 10 = X
• 20 = XX
• 30 = XXX
• 40 = XL (subtractive notation: 50 - 10 = 40)
• 1 = I
• 2 = II
• 3 = III
• 4 = IV (subtractive notation: 5 - 1 = 4)

Learn how to convert numbers to Roman numerals by breaking down numbers into place values and adding corresponding Roman numeral values. Understand the values of each Roman numeral letter.