Free Printable Indices and Cube Root

1.

$a^m$ ÷ $a^n$ = ____

a)

$a^{m-n}$

b)

$a^{m+n}$

c)

$a^{m\times n}$

d)

$a^{m\div n}$

2.

What is the cube root of 2197?

a)

12

b)

13

c)

14

d)

15

3.

Cube root of 216 is _______

a)

6

b)

-6

c)

none of the above

d)

both a and b

4.

Which of the following is a perfect cube ?

a)

25

b)

100

c)

125

d)

115

5.

Find the least number by which 750 should be multiplied, so that it becomes a perfect cube.

a)

12

b)

24

c)

36

d)

48

6.

Square of Cube root of 140 …….

a)

$\left(8^2\right)^{\frac{1}{3}}$

b)

$\left(8^{\frac{1}{\ 3\ }}\right)^2$

c)

$\left(140^2\right)^{\frac{1}{3}}$

d)

$\left(140^{\frac{1}{\ 3\ }}\right)^2$

7.

Cube of -21 is………

a)

-1226

b)

-9261

c)

9261

d)

None

8.

In general , $a^{\frac{1}{n}}$ is written as $‘n^{th}$ root of a’

a)

$TRUE$

b)

$FALSE$

9.

$6^1=?$

a)

$1$

b)

$0$

c)

$6$

d)

$-6$

10.

$\left(\frac{a}{b}\right)^{-m}$ =

a)

$\left(\frac{b}{a}\right)^m$

b)

$\left(\frac{b}{a}\ m\right)$

c)

$\frac{a^m}{b^m}$

d)

$\frac{b^m}{a^m}$

Indices and Cube Root

Total questions: 10

Worksheet time: 4mins

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