The image you've provided shows number line diagrams related to two subtraction problems involving integers:

1. Problem 7: This problem depicts a number line with a red arrow moving from $-1$ to $-4$, which represents the subtraction $-1 - 3$. The result is $-4$.

2. Problem 8: This problem shows another number line with a blue arrow moving from $2$ to $-3$, indicating the subtraction $2 - 5$. The result is $-3$.

These diagrams help visualize subtraction on a number line by showing how you move left from the starting point to subtract a positive number.

Would you like to go into further details or have any questions?

Here are 5 related questions you might explore:

1. What is the general rule for subtracting a positive integer from a number on a number line?
2. How would the number line change if you were subtracting a negative integer?
3. Can you explain how addition can be visualized on a number line?
4. What happens when you subtract a larger positive integer from a smaller one?
5. How does using a number line help in understanding integer operations?

Tip: When subtracting integers, think of subtraction as moving to the left on a number line. This can help you better understand and visualize the result.