1st Grade Missing Numbers Worksheets

1. 1.___ + 7 = 18
2. 2.12 - ___ = 5
3. 3.6 + ___ = 15
4. 4.___ - 5 = 6
5. 5.7 - ___ = 1
6. 6.___ - 3 = 8
7. 7.___ + 7 = 17
8. 8.1 + ___ = 10
9. 9.12 - ___ = 2
10. 10.6 + ___ = 8
11. 11.___ + 9 = 20
12. 12.___ - 4 = 4
13. 13.___ - 2 = 1
14. 14.6 + ___ = 16
15. 15.___ + 4 = 6
16. 16.11 - ___ = 10
17. 17.___ + 6 = 14
18. 18.8 + ___ = 9
19. 19.11 - ___ = 5
20. 20.___ - 1 = 5

Every worksheet is generated with validated, duplicate-free problems and laid out to fit cleanly on US Letter paper. Choose your own difficulty, problem count, and answer key on the builder.