Math worksheet for practicing adding and subtracting integers with various problems.

Let's solve the Adding and Subtracting Integers (A) worksheet step by step. I'll go through each problem, show the calculation, 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:
- Same signs: add absolute values, keep the sign.
- Different signs: subtract smaller from larger, keep the sign of the larger absolute value.

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Now let’s solve each row:

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#### Column 1:

1. $-9 + 9 = 0$
2. $-7 + 8 = 1$
3. $-8 + (-7) = -8 - 7 = -15$
4. $-10 - (-4) = -10 + 4 = -6$
5. $-9 - (-10) = -9 + 10 = 1$
6. $-7 - 9 = -16$
7. $8 + (-3) = 8 - 3 = 5$
8. $-4 + 8 = 4$
9. $2 + 7 = 9$
10. $10 + (-10) = 0$
11. $-7 - (-2) = -7 + 2 = -5$
12. $-9 - (-7) = -9 + 7 = -2$
13. $1 + 10 = 11$
14. $5 + 9 = 14$
15. $-5 - 10 = -15$
16. $-2 - 9 = -11$
17. $10 - (-3) = 10 + 3 = 13$
18. $-8 - 9 = -17$
19. $10 + (-9) = 1$
20. $-5 - (-8) = -5 + 8 = 3$
21. $-3 - (-1) = -3 + 1 = -2$
22. $1 - 9 = -8$
23. $6 - (-3) = 6 + 3 = 9$
24. $-8 - 10 = -18$
25. $-6 + (-10) = -16$

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#### Column 2:

1. $-8 + (-1) = -9$
2. $-5 - 4 = -9$
3. $7 - 10 = -3$
4. $-9 + (-3) = -12$
5. $9 - (-8) = 9 + 8 = 17$
6. $10 + 7 = 17$
7. $6 + 7 = 13$
8. $-3 + (-4) = -7$
9. $-4 - (-3) = -4 + 3 = -1$
10. $-7 - 4 = -11$
11. $10 - 1 = 9$
12. $1 - 5 = -4$
13. $-7 + (-1) = -8$
14. $8 - (-5) = 8 + 5 = 13$
15. $-4 - (-6) = -4 + 6 = 2$
16. $-7 - (-3) = -7 + 3 = -4$
17. $9 - (-1) = 9 + 1 = 10$
18. $-4 + 7 = 3$
19. $3 + 3 = 6$
20. $8 + 8 = 16$
21. $5 - 6 = -1$
22. $1 - 8 = -7$
23. $9 + 5 = 14$
24. $-6 + (-6) = -12$
25. $-8 + (-2) = -10$

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#### Column 3:

1. $-2 + (-1) = -3$
2. $4 - 9 = -5$
3. $-8 - 6 = -14$
4. $-6 + (-9) = -15$
5. $-9 - 4 = -13$
6. $-1 - (-7) = -1 + 7 = 6$
7. $-4 - 10 = -14$
8. $-1 + (-1) = -2$
9. $3 + (-10) = -7$
10. $-6 - (-2) = -6 + 2 = -4$
11. $10 + (-8) = 2$
12. $5 + 2 = 7$
13. $2 + 8 = 10$
14. $10 - 5 = 5$
15. $3 + (-2) = 1$
16. $1 - 2 = -1$
17. $1 - 4 = -3$
18. $-4 + 1 = -3$
19. $2 - (-10) = 2 + 10 = 12$
20. $5 + (-3) = 2$
21. $6 + (-1) = 5$
22. $3 + 8 = 11$
23. $3 + 9 = 12$
24. $-9 - 2 = -11$
25. $8 + 4 = 12$

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✔ Final Answers (in order):

#### Column 1:
1. 0
2. 1
3. -15
4. -6
5. 1
6. -16
7. 5
8. 4
9. 9
10. 0
11. -5
12. -2
13. 11
14. 14
15. -15
16. -11
17. 13
18. -17
19. 1
20. 3
21. -2
22. -8
23. 9
24. -18
25. -16

#### Column 2:
1. -9
2. -9
3. -3
4. -12
5. 17
6. 17
7. 13
8. -7
9. -1
10. -11
11. 9
12. -4
13. -8
14. 13
15. 2
16. -4
17. 10
18. 3
19. 6
20. 16
21. -1
22. -7
23. 14
24. -12
25. -10

#### Column 3:
1. -3
2. -5
3. -14
4. -15
5. -13
6. 6
7. -14
8. -2
9. -7
10. -4
11. 2
12. 7
13. 10
14. 5
15. 1
16. -1
17. -3
18. -3
19. 12
20. 2
21. 5
22. 11
23. 12
24. -11
25. 12

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✔ All problems solved!
You can now fill in the answers on your worksheet.

Let me know if you'd like this as a printable PDF or need explanations for specific problems!