This math puzzle looks very simple, but it can still catch people who answer too quickly.
The expression is:
3 + 5 × 0 + 7
The key is to follow the correct order of operations. Multiplication must be completed before addition.
Start with:
5 × 0 = 0
Now the expression becomes:
3 + 0 + 7
Then add the remaining numbers:
3 + 7 = 10
A common mistake is to work from left to right and add 3 + 5 first. Another mistake is thinking that the zero makes the entire expression equal zero. It does not. The zero only affects the 5 because those two numbers are being multiplied together.
Answer: 10.
Did you get 10 on your first try, or did the ×0 make you stop and think?


