A lot of people look at 1 + 2 × 3! and answer too quickly, but the key is following the correct order of operations.

First, deal with the factorial.
The factorial of 3 is:

3! = 3 × 2 × 1 = 6

Now the problem becomes:

1 + 2 × 6

Next, do the multiplication:

2 × 6 = 12

Now add the 1:

1 + 12 = 13

So the correct answer is 13.

Why do many people get it wrong?
Because they either ignore the factorial sign or solve the problem from left to right without using the proper math rules. In expressions like this, factorial comes first, then multiplication, then addition.

So even though the image asks 7 or 9, neither one is correct.

Final answer: 13