Here’s a quick mental-math challenge: 280 − 30 × 0 + 6 = ? The key is to follow the order of operations instead of calculating straight from left to right.
The correct answer is 286
Multiplication comes first: 30 × 0 = 0. That leaves 280 − 0 + 6. Subtracting zero leaves 280 unchanged, and then adding six produces 286.
Why isn’t the answer zero?
Multiplication by zero applies only to the term 30 × 0, not to the whole expression. The 280 and the final six remain in the equation. Likewise, calculating 280 − 30 first would ignore the normal order of operations.
A useful tip for math puzzles
For equations containing multiplication and addition or subtraction, complete multiplication first. Then finish addition and subtraction from left to right. Small puzzles like this can be a fun way to refresh mental math skills.
Did you get 286 on your first attempt?
