 # Practice - Indices and Roots - 05

Hey there, budding mathematician! Are you ready to tackle some Indices and Roots? This quiz has been specially designed for KS3 students just like you. So buckle up and exercise those brain cells - let's find out how much you really know about these quintessential aspects of Maths!
1.
Which of the following statements is incorrect?
The square root of 1 is 1
2 squared is 4
2 cubed is 6
Any number raised to the power of 1 is the number itself
2 cubed is 8, not 6. 2 cubed is 2 x 2 x 2, which equals 8. All the other statements are correct.
2.
What is 9 squared (92)?
18
81
36
27
9 squared (92) is 9 times 9, which equals 81.
3.
What is the value of 30?
0
1
3
2
Any non-zero number raised to the power of 0 equals 1.
4.
What is 2 raised to the power of 0 (20)?
0
2
1
4
Any number raised to the power of 0 equals 1.
5.
What is 5 squared (52)?
10
25
20
15
5 squared (52) is 5 x 5, which equals 25.
6.
Which of the following is true about the cube root of 8?
It is 3
It is 2
It is 4
It is 5
The cube root of a number is the value that, when multiplied by itself thrice, gives the original number. Hence, cube root of 8 is 2 because 2 x 2 x 2 = 8.
7.
What is the value of 10-2?
-20
100
0.01
0.1
10 raised to the power of -2 equals 1 divided by 102, which is 1 divided by 100, equal to 0.01.
8.
What is the square root of 64?
6
7
8
9
The square root of a number is the value that, when multiplied by itself, gives the original number. Hence, √ 64  = 8 because 8 x 8 = 64.
9.
What is the cube of 4 (43)?
12
64
16
48
4 cubed (43) is 4 x 4 x 4, which equals 64.
10.
What is the cube root of 125?
3
4
5
6
The cube root of 125 is 5, as 5 x 5 x 5 equals 125.
Author:  Graeme Haw 