Free Printable Class 8 (Exponents) 1

1.

a^m x aⁿ is equal to

a)

a^m+n

b)

a^m-n

c)

a^mn

d)

a^n-m

2.

a^m\div a^n\ is\ equal\ to

a)

$a^{m-n}$

b)

$a^{m+n}$

c)

$a^{mn}$

d)

$a^{n-m}$

3.

(a^m)ⁿ is equal to

a)

a^m+n

b)

a^m-n

c)

a^mn

d)

a^n-m

4.

a^m x b^m is equal to

a)

(ab)^m

b)

(ab)^-m

c)

a^m b

d)

ab^m

5.

a⁰ is equal to

a)

0

b)

1

c)

-1

d)

a

6.

\frac{a^m}{b^m}\ is\ equal\ to

a)

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

b)

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

c)

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

d)

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

7.

2 x 2 x 2 x 2 x 2 is equal to

a)

2⁴

b)

2⁵

c)

2²

d)

2³

8.

In 10², the exponent is

a)

1

b)

2

c)

10

d)

1

9.

In 10² the base is

a)

1

b)

0

c)

10

d)

100

10.

10^-1 is equal to

a)

10

b)

-1

c)

\frac{1}{10}

d)

$-\frac{1}{10}$

11.

The multiplicative inverse of 2^-3 is

a)

2

b)

3

c)

-3

d)

2³

12.

The multiplicative inverse of 10⁵ is

a)

5

b)

10

c)

10^-5

d)

10⁵

13.

The multiplicative inverse of

$\frac{1}{2^2}$ is

a)

$2^5$

b)

$2^2$

c)

2

d)

1

14.

The multiplicative inverse of $10^{10}$ is

a)

10

b)

\frac{1}{10}

c)

$10^{-10}$

d)

$10^{10}$

15.

The multiplicative inverse of a^m is

a)

a

b)

m

c)

a^m

d)

a^-m

16.

5³ x 5^-1 is equal to

a)

5

b)

5³

c)

5^-1

d)

5²

17.

(-2)^-5 x (-2)⁶ is equal to

a)

2

b)

-2

c)

-5

d)

6

18.

3² x 3^-4 x 3⁵ is equal to

a)

3

b)

3²

c)

3³

d)

3⁵

19.

$\left(-2\right)^{-2}\ is\ equal\ to$

a)

$\frac{1}{4}$

b)

$\frac{1}{2}$

c)

$-\frac{1}{2}$

d)

$-\frac{1}{4}$

20.

$\left(\frac{1}{2}\right)^{-4}\ is\ equal\ to$

a)

2

b)

$2^{-4}$

c)

1

d)

$2^4$

21.

(2⁰ + 4^-1) x 2² is equal to

(a)

22.

(2^-1 + 3^-1 + 5^-1)⁰ is equal to

(a)

23.

$3^m\ +\ 3^{-3\ }=\ 3^5\ \Longrightarrow\ m\ is\ equal\ to$

(a)

24.

$\left(-2\right)^{m+1}\ \times\ \left(-2\right)^4\ =\ \left(-2\right)^6\ \Longrightarrow\ m=$

(a)

25.

(-1)⁵⁰ is equal to

(a)

Class 8 (Exponents) 1

Total questions: 25

Worksheet time: 13mins

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