CBSE Class 8 Maths Exponents and Powers Quiz 2

1. The multiplicative inverse of 2-3 is

A

2

B

3

C

3

D

2³

2. The multiplicative inverse of 10⁵ is

A

5

B

10

C 10^-5 D 10⁵

3. The multiplicative inverse of \(\frac{1}{2^2}\) is 22

A 2⁵ B

2²

C

2

D

1

4. The multiplicative inverse of 10¹⁰ is

A

10

B \(\frac{1}{10}\) C 10^-10 D 10¹⁰

5. The multiplicative inverse of am is

A

a

B

m

C a^m D a^-m

6. 5³ × 5^-1 is equal to

A

5

B

5³

C 5^-1 D

5²

7. (- 2)^-5 x (-2)⁶ is equal to

A

2

B

-2

C

-5

D

6

8. 3² × 3^-4 × 3⁵ is equal to

A

3

B

3²

C

3³

D 3⁵

9. (-2)^-2 is equal to

A \(\frac{1}{4}\) B \(\frac{1}{2}\) C -\(\frac{1}{2}\) D -\(\frac{1}{4}\)

10. (\(\frac{1}{2}\))^-4 is equal to

A

2

B 2^-4 C

1

D 2⁴