3rd Grade Number Sequences Worksheets

1. 1.Fill in the missing number: 0, 3, ___, 9, 12
2. 2.Fill in the missing number: 16, 20, ___, 28, 32
3. 3.Fill in the missing number: 9, ___, 15, 18, 21
4. 4.Fill in the missing number: 12, 16, ___, 24, 28
5. 5.Fill in the missing number: 18, 24, ___, 36, 42
6. 6.Fill in the missing number: 15, 20, ___, 30, 35
7. 7.Fill in the missing number: 8, ___, 16, 20, 24
8. 8.Fill in the missing number: 24, 30, 36, ___, 48
9. 9.Fill in the missing number: 4, 8, 12, ___, 20
10. 10.Fill in the missing number: 10, 15, ___, 25, 30
11. 11.Fill in the missing number: 25, 30, 35, 40, ___
12. 12.Fill in the missing number: 9, 12, 15, 18, ___
13. 13.Fill in the missing number: 10, 15, 20, 25, ___
14. 14.Fill in the missing number: 0, 3, 6, 9, ___
15. 15.Fill in the missing number: 20, 25, 30, ___, 40
16. 16.Fill in the missing number: 20, 24, 28, 32, ___
17. 17.Fill in the missing number: 18, ___, 30, 36, 42
18. 18.Fill in the missing number: 0, 5, ___, 15, 20
19. 19.Fill in the missing number: 12, 16, 20, 24, ___
20. 20.Fill in the missing number: 8, 12, 16, 20, ___

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.