Shark Learning
Grade 4/Subtraction

Find the Missing Addend (via Subtraction)

Use subtraction to find the unknown addend in an addition equation.
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Easy
1
18 questions
2
18 questions
Medium
1
18 questions
2
18 questions
Hard
1
18 questions
2
18 questions

Practice Questions

  1. ? + 478 = 935
    Show answer

    457

  2. ? + 620 = 1,000
    Show answer

    380

  3. ? + 295 = 840
    Show answer

    545

  4. ? + 3,450 = 5,000
    Show answer

    1550

  5. ? + 760 = 1,025
    Show answer

    265

Teacher Resources
Teaching Notes

Emphasize inverse relationship.

Vocabulary
Addend: A number added in an addition problem.
Missing Addend: An unknown number in an addition problem.
Common Mistakes
  • subtract smaller from larger incorrectly
  • Adds instead of subtracts
  • Subtracts wrong numbers
  • Does not check work
  • Confuses addends/sum
Differentiation
SupportUse manipulatives or a number line for support.
ChallengeSolve word problems with missing addends.
Discussion Questions
  • How are addition and subtraction related?
  • Why do we subtract to find a missing addend?
  • How does checking your work help?
  • When might you use this skill in daily life?
Extension Activities
  • Use fact families to solve.
  • Draw a bar model.
  • Guess and check.
Parent Tip

Ask: 'I have 5 cookies, and 8 total. How many more do I need?'

Learning Path
Skill Cluster

Number Sense & Operations

Estimated Time

12 minutes

Skills Practiced
Inverse add subtract