Welcome to your GRADE 8 MATHEMATICS CHAPTER 2
After carefully reading the following 30 questions, choose the correct answer.
1.
What is a square number?
2.
Which of the following is a perfect square?
3.
What is the square of -4?
4.
Every positive rational number x has how many square roots?
5.
What is the non-negative square root of a number called?
6.
What is the square root of 625?
7.
A cube number is obtained by multiplying a number by itself how many times?
9.
If x = -4, what is x³?
10.
What is the cube root of 8?
11.
What is the approximate value of (3.2)³?
12.
In rounding, if the next digit is 5 or more, you should:
13.
Which of the following is the cube of 2/3?
14.
What is the square root of 100/121?
15.
If a square has an area of 49 cm², what is the length of its side?
16.
What is the value of 0.02 cubed?
17.
A perfect square is a number whose square root is a:
18.
What is the square of 1.2?
19.
The cube root of a negative number is:
20.
What is the cube root of 1/64?
21.
Which number multiplied by itself 3 times gives 27/125?
22.
To estimate an answer quickly, what process is useful?
23.
What is the square root of 0.25?
24.
If a volume of a cube is 64 m³, what is its side length?
25.
What is the square of 11?
27.
In the radical symbol √x, what is 'x' called?
28.
What is the square of 20?
29.
What is the cube root of 1000?
