Worksheet

Relate Addition and Subtraction

Grade 1 - Math - Building Confidence

NameDate

  1. 1 + ____ = 9. Which subtraction fact finds the missing addend?

    • 9 + 1 = 10
    • 1 - 8 = 7
    • 9 - 1 = 8

  2. Use a related fact to solve ____ + 1 = 6.

  3. Which addition fact checks 7 - 3 = 4?

    • 7 + 3 = 10
    • 3 + 4 = 7
    • 3 + 7 = 10

  4. 9 - ____ = 7. What missing part belongs in the equation?

  5. A whole is 8. One part is 1. What is the other part?

  6. 8 + ____ = 10. Which subtraction fact finds the missing addend?

    • 10 + 8 = 18
    • 10 - 8 = 2
    • 10 - 2 = 8

  7. Use a related fact to solve ____ + 6 = 9.

  8. Which addition fact checks 10 - 1 = 9?

    • 1 + 9 = 10
    • 1 + 10 = 11
    • 10 + 1 = 11

  9. 10 - ____ = 8. What missing part belongs in the equation?

  10. A whole is 8. One part is 4. What is the other part?

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