16Hit1600
Advanced MathEasy–MediumNumber from its square root plus two

Advanced Math practice question

Adding 2 to the square root of a positive number gives 7. What is the number?

Answer: 25

√n = 5, so n = 25.

Common wrong answers

If you answered 5
5 is the square root, not the number.
If you answered 49
49 squares 7 without subtracting the 2 first.
If you answered 81
81 squares 9, adding 2 instead of subtracting.

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