To subtract $5 - (-3)$ using a number line, follow these steps:

1. Start at 5 on the number line.
2. Subtracting a negative is the same as adding the positive equivalent. So, $5 - (-3)$ is the same as $5 + 3$.
3. Move 3 units to the right from 5.

So, you start at 5 and move 3 steps to the right, landing on 8.

Therefore, $5 - (-3) = 8$.

Would you like more details on this, or do you have any questions?

Here are 5 related questions to deepen your understanding:

1. What happens when you subtract a positive number using a number line?
2. How do you add two negative numbers on a number line?
3. What does the number line look like for $-5 + 3$?
4. How would you visually represent $5 - (-3)$ if both numbers were negative?
5. Can subtraction of negative numbers be explained as an addition of positive numbers?

Tip: Subtracting a negative number is the same as adding its positive counterpart.