Math worksheet for practicing subtraction of integers, featuring problems with positive and negative numbers.

Let's solve each problem step by step. The task involves adding and subtracting integers, including both positive and negative numbers.

We'll go through each one, applying the rules:

- Adding a positive number: move right on the number line.
- Adding a negative number: move left (same as subtracting a positive).
- Subtracting a negative number: becomes addition (e.g., $ a - (-b) = a + b $).

---

Solutions:

1. $(-10) + 5 = -5$
→ Start at -10, add 5 → $-10 + 5 = -5$

2. $(-3) + 4 = 1$
→ Start at -3, add 4 → $-3 + 4 = 1$

3. $7 + (-6) = 1$
→ Same as $7 - 6 = 1$

4. $(-4) + (-2) = -6$
→ Adding two negatives: $-4 - 2 = -6$

5. $(-4) + 5 = 1$
→ $-4 + 5 = 1$

6. $(-15) - 7 = -22$
→ Subtracting 7 from -15 → $-15 - 7 = -22$

7. $(-9) - (-6) = -9 + 6 = -3$
→ Subtracting a negative is adding: $-9 + 6 = -3$

8. $5 - (-9) = 5 + 9 = 14$
→ Again, subtracting a negative → $5 + 9 = 14$

9. $(-4) + 9 = 5$
→ $-4 + 9 = 5$

10. $(-2) + 1 = -1$
→ $-2 + 1 = -1$

11. $6 + (-3) = 3$
→ $6 - 3 = 3$

12. $(-3) + (-5) = -8$
→ $-3 - 5 = -8$

13. $(-1) + 2 = 1$
→ $-1 + 2 = 1$

14. $(-3) - 7 = -10$
→ $-3 - 7 = -10$

15. $(-2) - (-6) = -2 + 6 = 4$
→ Subtracting a negative → $-2 + 6 = 4$

16. $9 - (-3) = 9 + 3 = 12$
→ $9 + 3 = 12$

---

✔ Final Answers:

| Problem | Answer |
|--------|--------|
| 1 | -5 |
| 2 | 1 |
| 3 | 1 |
| 4 | -6 |
| 5 | 1 |
| 6 | -22 |
| 7 | -3 |
| 8 | 14 |
| 9 | 5 |
| 10 | -1 |
| 11 | 3 |
| 12 | -8 |
| 13 | 1 |
| 14 | -10 |
| 15 | 4 |
| 16 | 12 |

---

📌 Key Tips:

- When you subtract a negative, it becomes addition.
- When adding numbers with different signs, subtract their absolute values and keep the sign of the larger number.
- When adding two negatives, add their absolute values and keep the negative sign.

Let me know if you'd like this explained visually or with number lines!