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Grade 2/Subtraction

Subtracting Tens from 3-Digit Numbers

Practice subtracting whole tens from 3-digit numbers.
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#WorksheetQuestionsActions
Easy(Numbers 100–549)
1
20 questions
2
20 questions
3
20 questions
Medium(Numbers 100–999)
1
20 questions
2
20 questions
3
20 questions
4
20 questions
Hard(Numbers 460–999)
1
20 questions
2
20 questions
3
20 questions
Prerequisites
Subtract Whole Tens from 3-Digit Numbers Without Regrouping10 WS
362 - 40 = ___
What to Do Next
Subtract Whole Tens (Missing Number) to 1,00010 WS
__ - 60 = 240

Practice Questions

  1. 268 - 50 = ?
    Show answer

    218

  2. 357 - 60 = ?
    Show answer

    297

  3. 446 - 70 = ?
    Show answer

    376

  4. 535 - 80 = ?
    Show answer

    455

  5. 624 - 90 = ?
    Show answer

    534

Teacher Resources
Teaching Notes

Emphasize place value when subtracting tens. Students should recognize that only the tens digit changes, unless the number of tens becomes negative and requires borrowing from the hundreds place (which is less common with 'whole tens' but possible if, for example, 300-50). Focus on mental math strategies.

Vocabulary
Align digits: Place digits in correct columns.
Regrouping: Borrowing from a higher place value.
Common Mistakes
  • Subtracting from the wrong place value (e.g., subtracting tens from the ones digit).
  • Confusing subtracting tens with subtracting ones or hundreds.
  • Forgetting to adjust the hundreds digit if regrouping is implicitly needed (e.g., 200 - 30, though the prompt implies simpler cases like 350 - 20).
Differentiation
SupportUse base ten blocks or a hundreds chart for visual support. Start with simpler problems where only the tens digit changes. Provide a number line for counting back by tens.
ChallengeIntroduce problems that require mental math without writing. Challenge students with larger 3-digit numbers or by subtracting multiples of tens that cross hundreds (e.g., 320 - 50). Ask them to explain their strategy.
Discussion Questions
  • When we subtract a whole ten, which digit(s) in the 3-digit number change?
  • How is subtracting 20 from 350 similar to subtracting 2 from 35?
  • Can you think of a real-life situation where you would subtract whole tens from a 3-digit number?
Extension Activities
  • Subtract tens and ones.
  • Create word problems.
Parent Tip

Use base-ten blocks to demonstrate subtracting tens.

Learning Path
Skill Cluster

Number Sense & Operations

Estimated Time

15 minutes

Skills Practiced
Subtracting tens and onesColumn subtraction