I'll solve each of these two-digit addition and subtraction problems carefully.
Let me work through them row by row:
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 Answer:
Row 1: 64, 4, 88, 110, 105, 92, 106
Row 2: 57, 170, 10, 137, 1, 96, 3
Row 3: 43, 86, 104, 105, 164, 43, 0
Row 4: 101, 27, 13, 116, 94, 44, 112
Row 5: 67, 17, 167, 119, 78, 46, 112
Row 6: 38, 26, 52, 86, 111, 9, 18
Row 7: 67, 17, 3, 56, 159, 131, 24
Parent Tip: Review the logic above to help your child master the concept of 3rd grade math.