Math worksheet for practicing subtraction of integers, including both positive and negative numbers.

Problem: Solving Integer Addition and Subtraction

The task involves solving a series of integer addition and subtraction problems. Let's solve each problem step by step.

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#### Left Column:

1. (-10) + 5 = ?
- Adding a positive number to a negative number:
\[
-10 + 5 = -5
\]
- Answer: \(\boxed{-5}\)

2. (-3) + 4 = ?
- Adding a positive number to a negative number:
\[
-3 + 4 = 1
\]
- Answer: \(\boxed{1}\)

3. 7 + (-6) = ?
- Adding a negative number to a positive number:
\[
7 - 6 = 1
\]
- Answer: \(\boxed{1}\)

4. (-4) + (-2) = ?
- Adding two negative numbers:
\[
-4 - 2 = -6
\]
- Answer: \(\boxed{-6}\)

5. (-4) + 5 = ?
- Adding a positive number to a negative number:
\[
-4 + 5 = 1
\]
- Answer: \(\boxed{1}\)

6. (-15) - 7 = ?
- Subtracting a positive number from a negative number:
\[
-15 - 7 = -22
\]
- Answer: \(\boxed{-22}\)

7. (-9) - (-6) = ?
- Subtracting a negative number is equivalent to adding its positive counterpart:
\[
-9 + 6 = -3
\]
- Answer: \(\boxed{-3}\)

8. 5 - (-9) = ?
- Subtracting a negative number is equivalent to adding its positive counterpart:
\[
5 + 9 = 14
\]
- Answer: \(\boxed{14}\)

---

#### Right Column:

9. (-4) + 9 = ?
- Adding a positive number to a negative number:
\[
-4 + 9 = 5
\]
- Answer: \(\boxed{5}\)

10. (-2) + 1 = ?
- Adding a positive number to a negative number:
\[
-2 + 1 = -1
\]
- Answer: \(\boxed{-1}\)

11. 6 + (-3) = ?
- Adding a negative number to a positive number:
\[
6 - 3 = 3
\]
- Answer: \(\boxed{3}\)

12. (-3) + (-5) = ?
- Adding two negative numbers:
\[
-3 - 5 = -8
\]
- Answer: \(\boxed{-8}\)

13. (-1) + 2 = ?
- Adding a positive number to a negative number:
\[
-1 + 2 = 1
\]
- Answer: \(\boxed{1}\)

14. (-3) - 7 = ?
- Subtracting a positive number from a negative number:
\[
-3 - 7 = -10
\]
- Answer: \(\boxed{-10}\)

15. (-2) - (-6) = ?
- Subtracting a negative number is equivalent to adding its positive counterpart:
\[
-2 + 6 = 4
\]
- Answer: \(\boxed{4}\)

16. 9 - (-3) = ?
- Subtracting a negative number is equivalent to adding its positive counterpart:
\[
9 + 3 = 12
\]
- Answer: \(\boxed{12}\)

---

Final Answers:

\[
\begin{aligned}
&\text{Left Column:} & &\text{Right Column:} \\
&1. \boxed{-5} & &9. \boxed{5} \\
&2. \boxed{1} & &10. \boxed{-1} \\
&3. \boxed{1} & &11. \boxed{3} \\
&4. \boxed{-6} & &12. \boxed{-8} \\
&5. \boxed{1} & &13. \boxed{1} \\
&6. \boxed{-22} & &14. \boxed{-10} \\
&7. \boxed{-3} & &15. \boxed{4} \\
&8. \boxed{14} & &16. \boxed{12} \\
\end{aligned}
\]

Final Answer Boxed:
\[
\boxed{
\begin{array}{ll}
1. -5 & 9. 5 \\
2. 1 & 10. -1 \\
3. 1 & 11. 3 \\
4. -6 & 12. -8 \\
5. 1 & 13. 1 \\
6. -22 & 14. -10 \\
7. -3 & 15. 4 \\
8. 14 & 16. 12 \\
\end{array}
}
\]