Answer: 64 – 4(5 + 6)

Did you get it right?

This black-board style math puzzle asks you to handle the parentheses first.

Answer: 64 - 4(5 + 6)

The Answer

The correct answer is: 20.

Here is why

  1. Start with 5 + 6 = 11.
  2. Then 4 x 11 = 44.
  3. Finally 64 – 44 = 20.

Why people miss it

The misleading part is the short expression. It tempts people to move too quickly and skip the order of operations.

What answer did you get before checking?