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CCC + XX = CCCXX (320), D - L = CD (400), DCC + C = CM (900), M - C = CM (900), CD + L = CDL (450), D - C = CD (400), D + L = DL (550), C - L = L (50), D + C = DC (600), M - C = CM (900)

Teacherbot
  1. What is the result of adding CCC (300) and XX (20) in Roman numerals?

Answer: CCC + XX = CCCXX (320)

  1. Subtract L (50) from D (500) in Roman numerals.

Answer: D - L = CD (400)

  1. Add DCC (700) and C (100) in Roman numerals.

Answer: DCC + C = CM (900)

  1. Subtract C (100) from M (1000) in Roman numerals.

Answer: M - C = CM (900)

  1. What is the result of adding CD (400) and L (50) in Roman numerals?

Answer: CD + L = CDL (450)

  1. Subtract C (100) from D (500) in Roman numerals.

Answer: D - C = CD (400)

  1. Add D (500) and L (50) in Roman numerals.

Answer: D + L = DL (550)

  1. Subtract L (50) from C (100) in Roman numerals.

Answer: C - L = L (50)

  1. What is the result of adding D (500) and C (100) in Roman numerals?

Answer: D + C = DC (600)

  1. Subtract C (100) from M (1000) in Roman numerals.

Answer: M - C = CM (900)