(8+4) / 2 = 8? No..... = 6 ......

Answer 1

Exactly the same in maths. First parantheses, then multiplication and division and at the end addition and subtraction.

Answer 2

Argee with answer below, but wanted to add, that in the answer you get not 6, but 6.0 (float), bcs of dividing.
If you want to sum 8/2 and 4, you can do like this:
(8/2) + 4
# 8