Shark Learning
Grade 4/Multiplication

✖️ Multiply by Whole Tens and Hundreds

Fluent products with factors that are multiples of ten or hundred, emphasizing place-value shifts.
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Easy
1
16 questions
2
16 questions
Medium
1
16 questions
2
16 questions
Hard
1
16 questions
2
16 questions

Practice Questions

  1. 34 × 20 = ?
    Show answer

    680

  2. 56 × 30 = ?
    Show answer

    1680

  3. 72 × 40 = ?
    Show answer

    2880

  4. 19 × 50 = ?
    Show answer

    950

  5. 23 × 70 = ?
    Show answer

    1610

Teacher Resources
Teaching Notes

Emphasize shifting place value, not just adding zeros. Connect understanding to powers of ten for conceptual fluency.

Vocabulary
Place Value: Value of a digit based on its position.
Scale: Change the size of a number.
Common Mistakes
  • Dropping a zero
  • Misplacing place value
  • Ignoring place value context
  • Incorrect number of zeros
  • Forgetting base fact product
  • Misaligning digits in calculations
Differentiation
SupportUse base-ten blocks or visual arrays to model.
ChallengeExtend to multiples of 1000 or decimal multiplication.
Discussion Questions
  • Why do digits shift left when multiplying by 10?
  • How is 30 x 4 similar to 3 x 4?
  • What happens when you multiply by 200 vs 20?
  • Can you explain a mental strategy for 60 x 7?
Extension Activities
  • Multiply by 20, 30, 40.
  • Multiply by 100, 200, 300.
  • Real-world price calculations.
Parent Tip

Ask your child to find prices for 10 or 100 of an item.

Learning Path
Skill Cluster

Number Sense & Operations

Estimated Time

12 minutes

Skills Practiced
Place value scalingDistributive property