I see you've uploaded a worksheet with various arithmetic problems involving both addition and subtraction of integers. I'll work on solving a few of these as examples:

1. $-12 - 2 = -14$
2. $2 - 9 = -7$
3. $-6 - (-9) = -6 + 9 = 3$
4. $-7 - (-15) = -7 + 15 = 8$
5. $6 - (-12) = 6 + 12 = 18$

Let me know if you would like me to solve all of these or need further clarification on a specific type of problem from this sheet!

Related Questions:

1. How does subtracting a negative number affect the result?
2. Can you explain how to combine positive and negative integers?
3. What is the general rule for solving arithmetic problems with negative signs?
4. What happens when you subtract a larger number from a smaller one?
5. How can integer arithmetic be applied to real-world scenarios?

Tip:

When subtracting a negative number, it's the same as adding the absolute value of that number!