Adding and Subtracting Mixed Integers from -25 to 25 (75 Questions ... - Free Printable

Problem Description:

The task involves calculating the sums and differences of integers. The worksheet provides a series of arithmetic problems involving addition and subtraction of positive and negative integers. We will solve each problem step by step.

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Solution:

#### Row 1:
1. \( (+15) + (-10) = 15 - 10 = 5 \)
2. \( (+25) - (-3) = 25 + 3 = 28 \)
3. \( (-6) - (+17) = -6 - 17 = -23 \)

#### Row 2:
4. \( (+6) + (+20) = 6 + 20 = 26 \)
5. \( (+3) - (-24) = 3 + 24 = 27 \)
6. \( (-15) - (+25) = -15 - 25 = -40 \)

#### Row 3:
7. \( (-1) + (+17) = -1 + 17 = 16 \)
8. \( (+14) - (+19) = 14 - 19 = -5 \)
9. \( (-22) - (+11) = -22 - 11 = -33 \)

#### Row 4:
10. \( (+24) + (+8) = 24 + 8 = 32 \)
11. \( (+13) + (+24) = 13 + 24 = 37 \)
12. \( (+10) - (+19) = 10 - 19 = -9 \)

#### Row 5:
13. \( (-17) + (+23) = -17 + 23 = 6 \)
14. \( (+16) - (-15) = 16 + 15 = 31 \)
15. \( (+7) - (+15) = 7 - 15 = -8 \)

#### Row 6:
16. \( (+12) + (+19) = 12 + 19 = 31 \)
17. \( (-22) + (+9) = -22 + 9 = -13 \)
18. \( (+19) + (+16) = 19 + 16 = 35 \)

#### Row 7:
19. \( (-8) - (+19) = -8 - 19 = -27 \)
20. \( (+20) - (+9) = 20 - 9 = 11 \)
21. \( (-11) - (+22) = -11 - 22 = -33 \)

#### Row 8:
22. \( (-24) + (-17) = -24 - 17 = -41 \)
23. \( (+16) + (-24) = 16 - 24 = -8 \)
24. \( (+1) - (+19) = 1 - 19 = -18 \)

#### Row 9:
25. \( (+15) - (+8) = 15 - 8 = 7 \)
26. \( (+25) - (-9) = 25 + 9 = 34 \)
27. \( (-6) - (+21) = -6 - 21 = -27 \)

#### Row 10:
28. \( (+10) + (+24) = 10 + 24 = 34 \)
29. \( (-20) + (+16) = -20 + 16 = -4 \)
30. \( (-18) + (+13) = -18 + 13 = -5 \)

#### Row 11:
31. \( (+15) + (+14) = 15 + 14 = 29 \)
32. \( (-12) + (+15) = -12 + 15 = 3 \)
33. \( (-6) - (+15) = -6 - 15 = -21 \)

#### Row 12:
34. \( (-12) + (-16) = -12 - 16 = -28 \)
35. \( (-20) + (-6) = -20 - 6 = -26 \)
36. \( (-19) - (+4) = -19 - 4 = -23 \)

#### Row 13:
37. \( (+22) + (-13) = 22 - 13 = 9 \)
38. \( (+1) - (+25) = 1 - 25 = -24 \)
39. \( (+24) + (+24) = 24 + 24 = 48 \)

#### Row 14:
40. \( (+13) - (+21) = 13 - 21 = -8 \)
41. \( (-21) + (+1) = -21 + 1 = -20 \)
42. \( (+10) + (+21) = 10 + 21 = 31 \)

#### Row 15:
43. \( (-21) - (+10) = -21 - 10 = -31 \)
44. \( (+9) + (+22) = 9 + 22 = 31 \)
45. \( (+19) - (+20) = 19 - 20 = -1 \)

#### Row 16:
46. \( (-14) + (+8) = -14 + 8 = -6 \)
47. \( (-6) - (+24) = -6 - 24 = -30 \)
48. \( (+19) - (+25) = 19 - 25 = -6 \)

#### Row 17:
49. \( (+21) + (+20) = 21 + 20 = 41 \)
50. \( (+22) - (+8) = 22 - 8 = 14 \)
51. \( (+14) + (+5) = 14 + 5 = 19 \)

#### Row 18:
52. \( (-23) - (+14) = -23 - 14 = -37 \)
53. \( (+9) + (+24) = 9 + 24 = 33 \)
54. \( (+10) + (+14) = 10 + 14 = 24 \)

#### Row 19:
55. \( (+2) - (+22) = 2 - 22 = -20 \)
56. \( (+1) + (+14) = 1 + 14 = 15 \)
57. \( (+22) + (+1) = 22 + 1 = 23 \)

#### Row 20:
58. \( (+14) + (+14) = 14 + 14 = 28 \)
59. \( (-3) - (+25) = -3 - 25 = -28 \)
60. \( (-8) + (+22) = -8 + 22 = 14 \)

#### Row 21:
61. \( (+23) - (+12) = 23 - 12 = 11 \)
62. \( (-21) - (+4) = -21 - 4 = -25 \)
63. \( (-16) - (+9) = -16 - 9 = -25 \)

#### Row 22:
64. \( (+5) + (+16) = 5 + 16 = 21 \)
65. \( (+2) + (+16) = 2 + 16 = 18 \)
66. \( (-23) - (+21) = -23 - 21 = -44 \)

#### Row 23:
67. \( (+21) + (+21) = 21 + 21 = 42 \)
68. \( (+25) - (+16) = 25 - 16 = 9 \)
69. \( (+18) - (+3) = 18 - 3 = 15 \)

#### Row 24:
70. \( (+20) + (+17) = 20 + 17 = 37 \)
71. \( (+6) + (+18) = 6 + 18 = 24 \)
72. \( (+7) - (+14) = 7 - 14 = -7 \)

#### Row 25:
73. \( (-25) - (+10) = -25 - 10 = -35 \)
74. \( (+22) - (+25) = 22 - 25 = -3 \)
75. \( (-19) + (+5) = -19 + 5 = -14 \)

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Final Answer:

\[
\boxed{
\begin{array}{ccc}
5 & 28 & -23 \\
26 & 27 & -40 \\
16 & -5 & -33 \\
32 & 37 & -9 \\
6 & 31 & -8 \\
31 & -13 & 35 \\
-27 & 11 & -33 \\
-41 & -8 & -18 \\
7 & 34 & -27 \\
34 & -4 & -5 \\
29 & 3 & -21 \\
-28 & -26 & -23 \\
9 & -24 & 48 \\
-8 & -20 & 31 \\
-31 & 31 & -1 \\
-6 & -30 & -6 \\
41 & 14 & 19 \\
-37 & 33 & 24 \\
-20 & 15 & 23 \\
28 & -28 & 14 \\
11 & -25 & -25 \\
21 & 18 & -44 \\
42 & 9 & 15 \\
37 & 24 & -7 \\
-35 & -3 & -14 \\
\end{array}
}
\]