Shark Learning
Grade 3/Division

➗ Missing Dividend or Divisor

Use inverse fact families to find missing dividend or divisor.
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Easy
1
12 questions
2
12 questions
Medium
1
12 questions
2
12 questions
Hard
1
12 questions
2
12 questions

Practice Questions

  1. ? ÷ 8 = 9
    Show answer

    72

  2. 121 ÷ ? = 11
    Show answer

    11

  3. 80 ÷ ? = 8
    Show answer

    10

  4. ? ÷ 10 = 7
    Show answer

    70

  5. ? ÷ 8 = 4
    Show answer

    32

Quick Tip
Use inverse facts to find the missing number. Example: __ ÷ 7 = 8 → 56 ÷ 7 = 8; 56 ÷ __ = 8 → 56 ÷ 7 = 8.
Teacher Resources
Teaching Notes

Have students restate as multiplication to solve quickly.

Vocabulary
dividend: The number being divided.
divisor: The number you divide by.
unknown: The missing number or variable.
Common Mistakes
  • Choosing dividend instead of divisor
  • Incorrect inverse recall
  • Confusing dividend and divisor.
  • Using incorrect inverse operation.
  • Multiplication fact recall errors.
  • Basic calculation mistakes.
Differentiation
SupportUse fact families with smaller numbers.
ChallengeSolve multi-step equations with missing values.
Discussion Questions
  • How does multiplication help solve division problems?
  • What operation finds a missing divisor?
  • When is the missing number the dividend?
  • Can you write a related fact for this equation?
Extension Activities
  • Create your own missing number problems.
  • Use a number line to solve.
  • Play 'guess the number'.
Parent Tip

Give your child simple word problems with missing numbers to solve.

Learning Path
Skill Cluster

Operations and Algebraic Thinking

Estimated Time

10 minutes

Skills Practiced
Inverse relationship