Printable worksheet for practicing addition and subtraction of integers, suitable for math education.

Let's solve the Adding and Subtracting Integers (A) worksheet step by step. I'll go through each problem, show the work, and provide the final answer.

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Rules to Remember:

- Adding a negative number is like subtracting:
$ a + (-b) = a - b $
- Subtracting a negative number is like adding:
$ a - (-b) = a + b $
- When adding or subtracting integers, pay attention to signs.

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Problem Set:

#### Column 1:

1. $-81 + 78 = -3$
2. $-95 + 75 = -20$
3. $79 - 98 = -19$
4. $87 - (-96) = 87 + 96 = 183$
5. $-61 - (-79) = -61 + 79 = 18$
6. $-2 + (-87) = -89$
7. $29 - (-19) = 29 + 19 = 48$
8. $-96 + (-17) = -113$
9. $15 + 81 = 96$
10. $-94 - 77 = -171$
11. $75 - (-82) = 75 + 82 = 157$
12. $85 - 90 = -5$
13. $94 - 58 = 36$
14. $85 - 84 = 1$
15. $-70 - (-64) = -70 + 64 = -6$
16. $80 - (-91) = 80 + 91 = 171$
17. $80 - 83 = -3$
18. $-76 + (-49) = -125$
19. $-77 - 76 = -153$
20. $-88 - (-69) = -88 + 69 = -19$
21. $-63 + 86 = 23$
22. $-88 - (-94) = -88 + 94 = 6$
23. $-88 + 58 = -30$
24. $-65 - 84 = -149$
25. $-86 - 50 = -136$

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#### Column 2:

26. $50 - 28 = 22$
27. $-53 + 89 = 36$
28. $-56 + (-35) = -91$
29. $-73 + (-85) = -158$
30. $-90 - (-38) = -90 + 38 = -52$
31. $-98 + 72 = -26$
32. $-73 + (-90) = -163$
33. $-92 + (-82) = -174$
34. $-96 + (-92) = -188$
35. $87 + 45 = 132$
36. $-79 - (-88) = -79 + 88 = 9$
37. $77 - 19 = 58$
38. $84 - 85 = -1$
39. $25 + 93 = 118$
40. $-81 + 94 = 13$
41. $71 - 82 = -11$
42. $86 + 42 = 128$
43. $-33 + (-84) = -117$
44. $-86 + (-16) = -102$
45. $-84 + 77 = -7$
46. $-92 + 67 = -25$
47. $-72 - (-27) = -72 + 27 = -45$
48. $9 - 82 = -73$
49. $-85 - 31 = -116$
50. $-76 - (-95) = -76 + 95 = 19$

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#### Column 3:

51. $78 - (-72) = 78 + 72 = 150$
52. $89 + 88 = 177$
53. $40 + (-85) = -45$
54. $-75 - 13 = -88$
55. $78 + 81 = 159$
56. $77 + (-80) = -3$
57. $92 + (-97) = -5$
58. $98 - 85 = 13$
59. $-36 - (-86) = -36 + 86 = 50$
60. $-84 - (-73) = -84 + 73 = -11$
61. $90 + 77 = 167$
62. $-74 - (-71) = -74 + 71 = -3$
63. $66 - 57 = 9$
64. $-99 + (-77) = -176$
65. $-95 - 30 = -125$
66. $70 + 68 = 138$
67. $95 + (-48) = 47$
68. $-92 - 90 = -182$
69. $97 + (-22) = 75$
70. $-50 + 80 = 30$
71. $-77 - 54 = -131$
72. $-82 - (-77) = -82 + 77 = -5$
73. $-75 + 77 = 2$
74. $-78 - 97 = -175$
75. $-85 - 84 = -169$

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✔ Final Answers:

| Problem | Answer |
|--------|--------|
| 1 | -3 |
| 2 | -20 |
| 3 | -19 |
| 4 | 183 |
| 5 | 18 |
| 6 | -89 |
| 7 | 48 |
| 8 | -113 |
| 9 | 96 |
| 10 | -171 |
| 11 | 157 |
| 12 | -5 |
| 13 | 36 |
| 14 | 1 |
| 15 | -6 |
| 16 | 171 |
| 17 | -3 |
| 18 | -125 |
| 19 | -153 |
| 20 | -19 |
| 21 | 23 |
| 22 | 6 |
| 23 | -30 |
| 24 | -149 |
| 25 | -136 |
| 26 | 22 |
| 27 | 36 |
| 28 | -91 |
| 29 | -158 |
| 30 | -52 |
| 31 | -26 |
| 32 | -163 |
| 33 | -174 |
| 34 | -188 |
| 35 | 132 |
| 36 | 9 |
| 37 | 58 |
| 38 | -1 |
| 39 | 118 |
| 40 | 13 |
| 41 | -11 |
| 42 | 128 |
| 43 | -117 |
| 44 | -102 |
| 45 | -7 |
| 46 | -25 |
| 47 | -45 |
| 48 | -73 |
| 49 | -116 |
| 50 | 19 |
| 51 | 150 |
| 52 | 177 |
| 53 | -45 |
| 54 | -88 |
| 55 | 159 |
| 56 | -3 |
| 57 | -5 |
| 58 | 13 |
| 59 | 50 |
| 60 | -11 |
| 61 | 167 |
| 62 | -3 |
| 63 | 9 |
| 64 | -176 |
| 65 | -125 |
| 66 | 138 |
| 67 | 47 |
| 68 | -182 |
| 69 | 75 |
| 70 | 30 |
| 71 | -131 |
| 72 | -5 |
| 73 | 2 |
| 74 | -175 |
| 75 | -169 |

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✔ Score: All 75 problems solved correctly!

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