Number Sentences with Missing Values

Name: _______________________________
Date: _______________________________

Instructions: Find the missing number in each number sentence. Write your answer on the line provided.

Section A: Addition

1. 15 + _______ = 23
2. _______ + 17 = 35
3. 42 + _______ = 68
4. _______ + 29 = 56
5. 34 + _______ = 71
6. _______ + 48 = 95

Section B: Subtraction

7. 38 − _______ = 14
8. _______ − 25 = 19
9. 67 − _______ = 32
10. _______ − 41 = 36
11. 85 − _______ = 58
12. _______ − 37 = 48

Section C: Mixed Practice

13. _______ + 53 = 100
14. 120 − _______ = 75
15. 64 + _______ = 128
16. _______ − 89 = 56
17. _______ + 76 = 150
18. 200 − _______ = 134

⭐ Challenge Questions

19. 156 + _______ = 243
20. _______ − 178 = 395