5+5 x 5+5 At first it may look easy, but it's important to go back to basics before diving in head first. The acronym PEMDAS can be handy when solving a sum like this one. Its letters spell out ...

After solving 3 x 3 and 3 ÷ 3, the equation becomes 9 - 1 + 3. From there, some simple addition and subtraction reveals the final result of 11.