Find the missing number in the "V" shape puzzle where the top numbers are 7 and 5, and the middle number is 5.

We have 7 on the top left, 5 on the top right, and 5 at the point of the 'V' shape. We need to find the number at the bottom.

A common way to solve these puzzles is to combine the numbers at the top and then use the number in the middle. Let's try adding the two numbers at the top and then subtracting the number at the point of the 'V'.

First, add the numbers at the top:

Next, subtract the number at the point of the 'V' (which is 5) from this sum:

Alternatively, you can think of it this way: If you start with 7, then add 5, and then take away 5, you will end up with the number you started with.