Did you get it right?
This no-calculator puzzle tests whether you handle the parentheses before subtracting.
The Answer
The correct answer is: 4.
Here is why
- First solve 3 + 6 = 9.
- Then multiply 4 x 9 = 36.
- Finally 40 – 36 = 4.
Why people miss it
Some readers subtract first and only then notice the multiplication, which changes the result.
What answer did you get before checking?
