Which number is not a perfect square: 9, 6, 4, 100, 1?
Answer and explanation
Correct answer: D.
- Step 1: The other numbers are squares of whole numbers. Step 2. 6 lies between two squares. **Answer: . Why not the others:** is what you get if you treat it as the odd one out. is what you get if you treat it as the odd one out. is what you get if you treat it as the odd one out.
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