Part 1: Conversion (Roman to Arabic Numerals)

  1. I = 1

  2. IV = 4

  3. IX = 9

  4. XII = 12

  5. XV = 15

  6. XIX = 19

  7. XXV = 25

  8. XL = 40

  9. LXXXII = 82

  10. XCIV = 94

  11. CXXV = 125

  12. DL = 550

  13. CM = 900

  14. MCMXCIX = 1999

  15. MMXXIII = 2023

Part 2: Conversion (Arabic to Roman Numerals)

  1. 3 = III

  2. 8 = VIII

  3. 14 = XIV

  4. 29 = XXIX

  5. 40 = XL

  6. 68 = LXVIII

  7. 97 = XCVII

  8. 144 = CXLIV

  9. 399 = CXX

  10. 501 = DI

  11. 789 = DCCLXXXIX

  12. 999 = CMXCIX

  13. 1456 = MCDLVI

  14. 1987 = MCMLXXXVII

  15. 2024 = MMXXIV

Part 3: Fill in the Blanks

  1. V + V = X

  2. X - III = VII

  3. L + XL = XC

  4. C - L = L

  5. D + M = MD

Part 4: True or False

  1. XL is 40. → True

  2. CXX equals 220. → False (CXX = 120)

  3. MMM represents 3000. → True

  4. CMXC equals 910. → False (CMXC = 990)

  5. DCL represents 650. → True

Bonus Challenge: Decoding History

The Roman year MDCCLXXVI equals 1776.

End of Answer Key

Answer Key: Roman Numerals


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