Shark Learning
First/Roman Numerals

Subtraction with Roman Numerals

Convert Roman numerals and subtract them.
0
Sheets
1371
Views
48
Downloads
Study Guide

Preview

Subtraction with Roman Numerals preview

Tap to open PDF

Practice Questions

  1. III - I = ?
    Show answer

    II

  2. V - I = ?
    Show answer

    IV

  3. V - II = ?
    Show answer

    III

  4. X - I = ?
    Show answer

    IX

  5. X - V = ?
    Show answer

    V

Teacher Resources
Teaching Notes

Convert to standard numbers first to avoid confusion with subtractive notation.

Vocabulary
Difference: The result of subtraction.
Subtract: To take away one number from another.
Common Mistakes
  • Incorrect value recognition
  • Errors in subtraction order
  • Producing negative results
  • Invalid Roman numeral formation
Differentiation
SupportUse a number line or conversion chart for values.
ChallengeSolve multi-step problems or with larger Roman numerals.
Discussion Questions
  • Why are Roman numerals useful in modern times?
  • How is this subtraction similar to base-10?
  • What's the largest number you can subtract?
  • Compare with different ancient number systems.
Extension Activities
  • Subtract larger numbers.
  • Create subtraction stories.
  • Use Roman numerals in sequences.
Parent Tip

Use two sets of objects; have your child remove one set and write the difference in Roman numerals.

Learning Path
Skill Cluster

Number Systems and Operations

Estimated Time

10 minutes

Skills Practiced
Compare roman values