Let's solve each of the two-digit addition and subtraction problems step by step.
---
Row 1
1. $ 89 - 25 = 64 $
2. $ 17 - 13 = 4 $
3. $ 21 + 67 = 88 $
4. $ 51 + 59 = 110 $
5. $ 45 + 60 = 105 $
6. $ 28 + 64 = 92 $
7. $ 16 + 90 = 106 $
---
Row 2
8. $ 99 - 42 = 57 $
9. $ 77 + 93 = 170 $
10. $ 22 - 12 = 10 $
11. $ 97 + 40 = 137 $
12. $ 13 - 12 = 1 $
13. $ 83 + 13 = 96 $
14. $ 14 - 11 = 3 $
---
Row 3
15. $ 63 - 20 = 43 $
16. $ 99 - 13 = 86 $
17. $ 64 + 40 = 104 $
18. $ 53 + 52 = 105 $
19. $ 82 + 82 = 164 $
20. $ 24 + 19 = 43 $
21. $ 17 - 17 = 0 $
---
Row 4
22. $ 55 + 46 = 101 $
23. $ 70 - 43 = 27 $
24. $ 48 - 35 = 13 $
25. $ 79 + 37 = 116 $
26. $ 24 + 70 = 94 $
27. $ 54 - 10 = 44 $
28. $ 35 + 77 = 112 $
---
Row 5
29. $ 88 - 21 = 67 $
30. $ 44 - 27 = 17 $
31. $ 87 + 80 = 167 $
32. $ 28 + 91 = 119 $
33. $ 24 + 54 = 78 $
34. $ 80 - 34 = 46 $
35. $ 53 + 59 = 112 $
---
Row 6
36. $ 28 + 10 = 38 $
37. $ 42 - 16 = 26 $
38. $ 18 + 34 = 52 $
39. $ 17 + 69 = 86 $
40. $ 62 + 49 = 111 $
41. $ 21 - 12 = 9 $
42. $ 45 - 27 = 18 $
---
Row 7
43. $ 92 - 25 = 67 $
44. $ 38 - 21 = 17 $
45. $ 35 - 32 = 3 $
46. $ 83 - 27 = 56 $
47. $ 69 + 90 = 159 $
48. $ 96 + 35 = 131 $
49. $ 74 - 50 = 24 $
---
✔ Final Answers (in order):
```
64, 4, 88, 110, 105, 92, 106,
57, 170, 10, 137, 1, 96, 3,
43, 86, 104, 105, 164, 43, 0,
101, 27, 13, 116, 94, 44, 112,
67, 17, 167, 119, 78, 46, 112,
38, 26, 52, 86, 111, 9, 18,
67, 17, 3, 56, 159, 131, 24
```
---
🔍 Explanation:
- For
addition, we add the two numbers directly.
- For
subtraction, we subtract the bottom number from the top.
- When adding or subtracting, always align digits by place value (ones and tens).
- Some results exceed 100 (e.g., 170), which is acceptable since the problem allows for two-digit operations that may result in three-digit answers.
Let me know if you'd like this formatted as a printable answer sheet!
Parent Tip: Review the logic above to help your child master the concept of math worksheets for 3rd graders.
