Let's solve each problem in the
Integer Addition and Subtraction (A) worksheet step by step. We'll go through each row, applying the rules for adding and subtracting integers.
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🔷 Rules to Remember:
1.
Adding a negative number is the same as
subtracting the positive:
- $ a + (-b) = a - b $
2.
Subtracting a negative number is the same as
adding the positive:
- $ a - (-b) = a + b $
3. When adding or subtracting integers:
- Same signs: Add absolute values, keep the sign.
- Different signs: Subtract smaller from larger, take the sign of the larger absolute value.
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Now, let’s solve each problem:
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#### Row 1:
1. $ 3 + (-8) = 3 - 8 = -5 $
2. $ (-9) - (-4) = -9 + 4 = -5 $
3. $ 7 - 5 = 2 $
#### Row 2:
4. $ 6 - (-4) = 6 + 4 = 10 $
5. $ (-4) - (-2) = -4 + 2 = -2 $
6. $ (-4) - 10 = -14 $
#### Row 3:
7. $ 6 - 5 = 1 $
8. $ (-2) - 5 = -7 $
9. $ (-2) - 7 = -9 $
#### Row 4:
10. $ (-8) + (-2) = -10 $
11. $ 8 + 6 = 14 $
12. $ (-9) + 10 = 1 $
#### Row 5:
13. $ 8 + (-10) = 8 - 10 = -2 $
14. $ 2 - (-10) = 2 + 10 = 12 $
15. $ 8 - 5 = 3 $
#### Row 6:
16. $ 8 - (-2) = 8 + 2 = 10 $
17. $ 1 - (-7) = 1 + 7 = 8 $
18. $ 4 + 2 = 6 $
#### Row 7:
19. $ (-2) + 6 = 4 $
20. $ (-4) - 4 = -8 $
21. $ 9 - (-7) = 9 + 7 = 16 $
#### Row 8:
22. $ (-1) - 0 = -1 $
23. $ 7 - 5 = 2 $
24. $ (-5) + (-10) = -15 $
#### Row 9:
25. $ (-1) - (-2) = -1 + 2 = 1 $
26. $ (-5) - (-6) = -5 + 6 = 1 $
27. $ 9 - (-9) = 9 + 9 = 18 $
#### Row 10:
28. $ 7 - 4 = 3 $
29. $ (-2) + 5 = 3 $
30. $ (-4) - (-10) = -4 + 10 = 6 $
#### Row 11:
31. $ 8 - (-2) = 8 + 2 = 10 $
32. $ (-6) + 2 = -4 $
33. $ 4 + 1 = 5 $
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✔ Final Answers (in order):
```
-5 -5 2
10 -2 -14
1 -7 -9
-10 14 1
-2 12 3
10 8 6
4 -8 16
-1 2 -15
1 1 18
3 3 6
10 -4 5
```
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📌 Summary Table:
| Problem | Answer |
|--------|--------|
| 1. 3 + (-8) | -5 |
| 2. (-9) - (-4) | -5 |
| 3. 7 - 5 | 2 |
| 4. 6 - (-4) | 10 |
| 5. (-4) - (-2) | -2 |
| 6. (-4) - 10 | -14 |
| 7. 6 - 5 | 1 |
| 8. (-2) - 5 | -7 |
| 9. (-2) - 7 | -9 |
| 10. (-8) + (-2) | -10 |
| 11. 8 + 6 | 14 |
| 12. (-9) + 10 | 1 |
| 13. 8 + (-10) | -2 |
| 14. 2 - (-10) | 12 |
| 15. 8 - 5 | 3 |
| 16. 8 - (-2) | 10 |
| 17. 1 - (-7) | 8 |
| 18. 4 + 2 | 6 |
| 19. (-2) + 6 | 4 |
| 20. (-4) - 4 | -8 |
| 21. 9 - (-7) | 16 |
| 22. (-1) - 0 | -1 |
| 23. 7 - 5 | 2 |
| 24. (-5) + (-10) | -15 |
| 25. (-1) - (-2) | 1 |
| 26. (-5) - (-6) | 1 |
| 27. 9 - (-9) | 18 |
| 28. 7 - 4 | 3 |
| 29. (-2) + 5 | 3 |
| 30. (-4) - (-10) | 6 |
| 31. 8 - (-2) | 10 |
| 32. (-6) + 2 | -4 |
| 33. 4 + 1 | 5 |
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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 integer worksheets.