Answer: 21 + 21 x 0 + 21

Did you get it right?

This quick math puzzle asks you to solve 21 + 21 x 0 + 21 without reaching for a calculator.

Answer: 21 + 21 x 0 + 21

The Answer

The correct answer is: 42.

Here is why

  1. Multiplication comes before addition.
  2. 21 x 0 equals 0.
  3. Then 21 + 0 + 21 equals 42.

Why people miss it

Many people add from left to right and forget that multiplication has to be handled first.

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