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Second/Roman Numerals

Roman Numeral Mixed Operations

Mixed addition and subtraction problems with Roman Numerals.
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Practice Questions

  1. X + V = ?
    Show answer

    XV

  2. XX - V = ?
    Show answer

    XV

  3. L + X = ?
    Show answer

    LX

  4. XC - X = ?
    Show answer

    LXXX

  5. C - I = ?
    Show answer

    XCIX

Teacher Resources
Teaching Notes

Encourage students to show their work by writing the standard numbers above the Roman Numerals.

Vocabulary
Mixed Operations: Using more than one math step.
Solve: Find the answer to a problem.
Common Mistakes
  • Incorrect Roman numeral values
  • Subtraction order (e.g., IX vs. XI)
  • Calculation errors
  • Improper numeral combinations
Differentiation
SupportProvide Roman numeral conversion chart. Start with smaller numbers.
ChallengeIntroduce multiplication/division. Use larger Roman numerals.
Discussion Questions
  • How are Roman numerals different from our number system?
  • What are the benefits of our number system over Roman numerals?
  • Where do we still see Roman numerals used today?
  • How would addition be harder with only Roman numerals?
Extension Activities
  • Include multiplication/division.
  • Create multi-step problems.
  • Use larger Roman numerals.
Parent Tip

Give your child simple math problems using Roman numerals, mixing addition and subtraction.

Learning Path
Skill Cluster

Number Systems & Operations

Estimated Time

15 minutes

Skills Practiced
Order roman numerals