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Grade 3/Multiplication

Missing Factor: Table of 2

Practice finding the missing factor in multiplication problems involving the table of 2. These exercises help students understand the relationship between multiplication and division.
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Easy
1
20 questions
2
20 questions
Medium
1
20 questions
2
20 questions
Hard
1
20 questions
2
20 questions
Prerequisites
Multiplication Tables of 2 and 36 WS
2 x 3 = ____
What to Do Next
Multiply & Divide by 5: Missing Factor6 WS
5 x ____ = 15

Practice Questions

  1. 2 x ? = 6
    Show answer

    3

  2. ? x 2 = 10
    Show answer

    5

  3. 2 x ? = 14
    Show answer

    7

  4. ? x 2 = 16
    Show answer

    8

  5. 2 x ? = 20
    Show answer

    10

Teacher Resources
Teaching Notes

Missing factor problems (2 x __ = 14) are the bridge to division. Encourage thinking 'How many 2s make 14?' or 'What did I double to get 14?'. This builds algebraic thinking.

Instruction Tips: These worksheets focus on finding the missing factor in multiplication problems involving the table of 2, helping students strengthen their understanding of multiplication and division.

Worked Example: 2 x __ = 18 worked example

Problem: 2 x __ = 18

Strategy: Think of the multiplication table of 2 and find the number that gives 18 when multiplied by 2.

Hints:

  • Use division to find the missing factor.

Steps:

  • Divide 18 by 2 to find the missing factor.
Vocabulary
Missing Factor: A number needed to complete multiplication.
Factor: Numbers multiplied to get a product.
Common Mistakes
  • Writing the product again (e.g., 2 x 28 = 14)
  • Guessing without checking
  • Confusing the operation (e.g., adding instead of finding the missing factor).
  • Difficulty with basic multiplication facts for 2.
  • Struggling to relate the missing factor to division.
Differentiation
SupportUse counters. Start with total 14, group into 2s, count the groups.
ChallengeRewrite as division sentences: 14 ÷ 2 = __.
Discussion Questions
  • How is finding the missing number like solving a mystery?
  • If I know the answer is even, does that help me?
  • What is the relationship between this worksheet and division?
  • How can skip counting help us find the missing number?
  • What does 'missing factor' mean in a multiplication problem?
  • How is this problem like division?
Extension Activities
  • Mystery Bag: 'I have 14 items in pairs. How many pairs?'
  • Write your own missing number puzzles.
  • Flashcards with a hole punch for the missing number.
Parent Tip

Use objects and ask 'How many groups of 2 make X?'

Learning Path
Skill Cluster

Number Sense & Operations

Estimated Time

15 minutes

Skills Practiced
Algebraic thinking multiplicationDivision prep