If the square of a number is 256, what is the number?

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Question: If the square of a number is 256, what is the number?

Options:

Correct Answer: 16

Solution:

The square root of 256 is 16, since 16 * 16 = 256.

If the square of a number is 256, what is the number?

If the square of a number is 256, what is the number?

Step 1: Understand that 'the square of a number' means multiplying the number by itself.
Step 2: We need to find a number that, when multiplied by itself, equals 256.
Step 3: To find this number, we can use the square root operation.
Step 4: Calculate the square root of 256. This means finding a number that gives 256 when multiplied by itself.
Step 5: The square root of 256 is 16, because 16 times 16 equals 256.
Step 6: Therefore, the number we are looking for is 16.

Square and Square Root – Understanding the relationship between a number and its square, as well as how to find the square root.