Answer: Please Do Not Use a Calculator Puzzle

Did you get it right?

This colorful no-calculator puzzle tests order of operations. The key is to solve multiplication or division before simple addition and subtraction.

The Answer

The correct answer is: 19.

Here is why

  • 9梅9=1
  • 9+1+9=19

Why people miss it

The common miss is reading the expression from left to right without applying order of operations.

What answer did you get before checking?