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Missing Addend (Grade 1)

Printable Grade 1 worksheet: find the missing number in each sum. 20 problems with a computed answer key.

✓ Answer key checked by math, never wrong
Name: ______________________Date: ____________
Math · Grade 1

Missing Addend

Find the missing number.

  1. 1.
    2 + ___ = 7
  2. 2.
    6 + ___ = 10
  3. 3.
    4 + ___ = 5
  4. 4.
    6 + ___ = 9
  5. 5.
    8 + ___ = 9
  6. 6.
    0 + ___ = 9
  7. 7.
    5 + ___ = 6
  8. 8.
    1 + ___ = 8
  9. 9.
    6 + ___ = 7
  10. 10.
    3 + ___ = 8
  11. 11.
    2 + ___ = 8
  12. 12.
    2 + ___ = 5
  13. 13.
    1 + ___ = 6
  14. 14.
    3 + ___ = 5
  15. 15.
    5 + ___ = 7
  16. 16.
    4 + ___ = 8
  17. 17.
    9 + ___ = 9
  18. 18.
    7 + ___ = 8
  19. 19.
    6 + ___ = 8
  20. 20.
    5 + ___ = 5
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