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Fourth/Multiplication

Doubling Multiples of Five

Practice multiplying multiples of 5 by 2 to enhance fluency in basic multiplication. These exercises help students understand patterns in multiplication.
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WorksheetsTeacher InfoLearning Path

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Prerequisites
Doubling Numbers Practice10 WS
2 x 14 = ____
What to Do Next
Doubling Multiples of Ten10 WS
2 x 70 = ____

Practice Questions

  1. 2 x 5 = ?
    Show answer

    10

  2. 2 x 10 = ?
    Show answer

    20

  3. 2 x 15 = ?
    Show answer

    30

  4. 2 x 20 = ?
    Show answer

    40

  5. 2 x 25 = ?
    Show answer

    50

Teacher Resources
Standards
3.OA.A.1
Printable Aids
Multiplication ChartSkip Counting Number Line
Teaching Notes

Focus on fluency and pattern recognition. Encourage students to visualize groups or use repeated addition strategies. Accuracy should come before speed.

Instruction Tips: These worksheets focus on multiplying multiples of 5 by 2, helping students recognize patterns and develop fluency in multiplication.

Worked Example: 2 x 55 worked example

Problem: 2 x 55

Strategy: Think of doubling the number: 55 + 55 = 110.

Hints:

  • Use repeated addition to find the answer.

Steps:

  • Multiply 2 by 55 to get the answer.
Vocabulary
Multiple: The result of multiplying a number.
Product: The answer to a multiplication problem.
Common Mistakes
  • Confusing operation symbols (+ vs x)
  • Skip-counting errors
  • Forgetting to double the multiple of 5.
  • Confusing multiplication with addition (e.g., 2+10 instead of 2x10).
  • Incorrectly skip-counting by 5s or 2s when solving.
Differentiation
SupportProvide manipulatives or a number line.
ChallengeChallenge students to create word problems for the equations.
Discussion Questions
  • What strategy did you use?
  • Which problem was easiest?
  • What patterns do you notice in the answers when multiplying by 2?
  • How is multiplying by 2 similar to adding a number to itself?
  • Can you predict the next product if you continue multiplying multiples of 5 by 2?
  • Why do all of your answers end in 0?
Extension Activities
  • Create flashcards.
  • Peer teaching.
Parent Tip

Have your child double amounts like 15 cents or 25 cents.

Learning Path
Skill Cluster

Number Sense & Operations

Estimated Time

15 minutes

Skills Practiced
Basic multiplication