Answer: 80 – 5(6 + 7)

Did you get it right?

This puzzle challenges you to check the parentheses before deciding whether the answer could be 35.

The Answer

The correct answer is: 15.

Here is why

1. Start inside the parentheses: 6 + 7 = 13.
2. Multiply next: 5 x 13 = 65.
3. Then subtract: 80 – 65 = 15.

Why people miss it

The trap is rushing past the parentheses or treating 5(6 + 7) as if it were just 5 + 6 + 7.

What answer did you get before checking?