1.
What is the square root of 100?
Correct Answer
C. 10
Explanation
The square root of a number is the value that, when multiplied by itself, gives the original number. In this case, the square root of 100 is 10 because 10 multiplied by itself equals 100.
2.
What is the square of 10?
Correct Answer
C. 100
Explanation
The square of a number is obtained by multiplying the number by itself. In this case, the square of 10 is 100, because 10 multiplied by 10 equals 100.
3.
What is the cube root of 27?
Correct Answer
D. 3
Explanation
The cube root of a number is the value that, when multiplied by itself three times, gives the original number. In this case, the cube root of 27 is 3 because 3 multiplied by itself three times equals 27.
4.
Which of these is a perfect square?
Correct Answer
B. 16
Explanation
16 is a perfect square because it can be expressed as the square of a whole number, in this case, 4.
5.
Which of these is is a square root of 81?
Correct Answer
B. 9
Explanation
The square root of a number is a value that, when multiplied by itself, gives the original number. In this case, the square root of 81 is 9 because 9 multiplied by itself equals 81. Therefore, 9 is a square root of 81.
6.
What is the square of 2?
Correct Answer
C. 4
Explanation
The square of a number is found by multiplying the number by itself. In this case, the number is 2. When 2 is multiplied by itself, the result is 4. Therefore, the correct answer is 4.
7.
Which of these is not a perfect square?
Correct Answer
A. 20
Explanation
A perfect square is a number that can be expressed as the product of two equal integers. The square root of a perfect square is always an integer. In this case, 20 is not a perfect square because it cannot be expressed as the product of two equal integers. The square root of 20 is approximately 4.47, which is not an integer. Therefore, 20 is not a perfect square.
8.
What is the square root of 49?
Correct Answer
D. 7
Explanation
The square root of a number is a value that, when multiplied by itself, gives the original number. In this case, the square root of 49 is 7 because 7 multiplied by itself equals 49.
9.
Which of these is the square root of 4?
Correct Answer
B. 2
Explanation
The square root of a number is a value that, when multiplied by itself, gives the original number. In this case, the square root of 4 is 2 because 2 multiplied by itself equals 4. Therefore, the correct answer is 2.
10.
Which of these is the square root of 25?
Correct Answer
D. 5
Explanation
The square root of a number is a value that, when multiplied by itself, gives the original number. In this case, the square root of 25 is 5 because 5 multiplied by itself equals 25.