To create the number 5 using the numbers 5, 5, 7, and 8, you can use various mathematical operations. Here is one possible solution:

$(8 - 7) \times 5 = 5$

Explanation:

1. Subtract 7 from 8 to get 1.
2. Multiply the result by 5 to get 5.

Let me know if you want other ways to achieve this or need further clarification!

---

Here are 5 related questions for further exploration:

1. Can you create other numbers using the same set of numbers?
2. What is the smallest number you can make using 5, 5, 7, and 8?
3. How would you represent 5 using all four numbers?
4. Can you create 10 using the same numbers?
5. Is there a way to use division to achieve the result?

Tip: Try different combinations of addition, subtraction, multiplication, and division to create target numbers efficiently!