This multiple-choice math puzzle looks easy until order of operations comes into play.
The expression is:
5 × 5 − 5 + 5 ÷ 5
Do multiplication and division first:
5 × 5 = 25
5 ÷ 5 = 1
Now the expression becomes:
25 − 5 + 1
Work from left to right:
25 − 5 = 20
20 + 1 = 21
So the correct answer is 21, which matches option C.
Answer: 21.
If you got 25 or 24, you probably changed the order somewhere along the way.
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