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Second/Subtraction

Subtraction in Columns: 3-digit (Regrouping)

3-digit column subtraction with regrouping (borrowing).
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Subtraction in Columns: 3-digit (Regrouping) preview

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Practice Questions

  1. 523 − 278 = ?
    Show answer

    245

  2. 604 − 258 = ?
    Show answer

    346

  3. 712 − 485 = ?
    Show answer

    227

  4. 830 − 467 = ?
    Show answer

    363

  5. 701 − 389 = ?
    Show answer

    312

Teacher Resources
Teaching Notes

Draw arrows to track borrows.

Vocabulary
Regroup: Borrowing from a higher place value.
Place Value: Position of a digit in a number.
Common Mistakes
  • not decreasing next place
  • Forgetting to regroup
  • Incorrectly regrouping
  • Not aligning digits
  • Subtracting smaller from larger digit
Differentiation
SupportUse base ten blocks to visualize regrouping.
ChallengeSolve multi-step word problems involving subtraction.
Discussion Questions
  • When do we need to regroup in subtraction?
  • Why is checking with addition important?
  • How does place value help with subtraction?
  • Can you explain regrouping to a partner?
Extension Activities
  • Create word problems.
  • Subtract larger numbers.
  • Use base-ten blocks.
Parent Tip

Ask your child to explain how they regrouped to solve a problem.

Learning Path
Skill Cluster

Number Sense and Operations

Estimated Time

14 minutes

Skills Practiced
Column subtraction regroup