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1st Grade Missing Numbers Worksheets
This free printable worksheet practices finding the missing number in addition and subtraction facts. It has 24 problems, and the answer key is on its own page when you print, so you can check work afterward.
Tip: Work one problem at a time and check each answer against the key at the end.
Name: ____________________Date: ____________
1st Grade Missing Numbers
- 19 − ____ = 4
- 0 + ____ = 15
- 6 + ____ = 20
- 2 + ____ = 15
- 17 − ____ = 8
- 5 − ____ = 4
- 19 − ____ = 3
- 14 − ____ = 0
- 5 + ____ = 15
- 7 + ____ = 13
- 1 + ____ = 1
- 11 − ____ = 10
- 17 − ____ = 6
- 9 + ____ = 10
- 0 + ____ = 5
- 2 + ____ = 3
- 8 + ____ = 17
- 7 − ____ = 2
- 5 + ____ = 6
- 9 − ____ = 0
- 4 + ____ = 19
- 7 + ____ = 20
- 14 − ____ = 5
- 4 + ____ = 18
Answer Key: 1st Grade Missing Numbers
- 15
- 15
- 14
- 13
- 9
- 1
- 16
- 14
- 10
- 6
- 0
- 1
- 11
- 1
- 5
- 1
- 9
- 5
- 1
- 9
- 15
- 13
- 9
- 14