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Fifth/Subtraction

Subtract 3-Digit Numbers in Columns

Practice subtracting 3-digit numbers using column format. Students learn regrouping (borrowing) and place value concepts while solving vertical subtraction problems.
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Prerequisites
Subtraction in Columns: 3-digit (No Regrouping)6 WS
963
− 421
 

Practice Questions

  1. 742 − 318 = ?
    Show answer

    424

  2. 865 − 427 = ?
    Show answer

    438

  3. 593 − 248 = ?
    Show answer

    345

  4. 926 − 514 = ?
    Show answer

    412

  5. 681 − 395 = ?
    Show answer

    286

Teacher Resources
Teaching Notes

Emphasize place value understanding during regrouping. Model crossing out and writing new digits clearly.

Vocabulary
Regroup: Borrowing from a higher place value.
Place Value: The value of a digit based on its position.
Common Mistakes
  • Forgetting to regroup or borrowing incorrectly.
  • Subtracting the smaller digit from the larger, regardless of position.
  • Misaligning digits by place value in column format.
Differentiation
SupportUse base-ten blocks to physically model regrouping steps.
ChallengeSolve multi-step word problems involving 3-digit subtraction.
Discussion Questions
  • When do you need to regroup when subtracting?
  • How does place value help you subtract in columns?
  • What strategy can you use to check your answer?
  • Can you explain regrouping to a classmate?
Extension Activities
  • Subtract 2-digit numbers.
  • Use addition to check.
  • Create word problems.
Parent Tip

Use coins or blocks to model regrouping for subtraction.

Learning Path
Skill Cluster

Number & Operations in Base Ten

Estimated Time

15 minutes

Skills Practiced
Subtracting 3 digit numbersRegrouping in subtractionColumn subtraction