Free Printable class 8 (Exponents) 2

1.

(-1)⁵¹ is equal to

(a)

2.

149600000000 is equal to

a)

1.496 x 10¹¹

b)

1.496 x 10¹⁰

c)

1.496 x 10¹²

d)

1.496 x 10⁸

3.

300000000 is equal to

a)

3 x 10⁸

b)

3 x 10⁷

c)

3 x 10⁶

d)

3 x 10⁹

4.

0.000007 is equal to

a)

7 x 10^-6

b)

7 x 10^-5

c)

7 x 10^-4

d)

7 x 10^-3

5.

384467000 is equal to

a)

3.84467 x 10⁸

b)

3.84467 x 10³

c)

3.84467 x 10⁷

d)

3.84467 x 10⁶

6.

0.00001275 is equal to

a)

1.275 x 10^-5

b)

1.275 x 10^-3

c)

1.275 x 10⁴

d)

1.275 x 10³

7.

695000 is equal to

a)

6.95 x 10⁵

b)

6.95 x 10³

c)

6.95 x 10⁶

d)

6.95 x 10⁴

8.

503600 is equal to

a)

5.036 x 10⁵

b)

5.036 x 10⁶

c)

5.036 x 10⁴

d)

5.036 x 10⁷

9.

0.0016 is equal to

a)

1.6 x 10^-2

b)

1.6 x 10^-3

c)

1.6 x 10^-4

d)

1.6 x 10^-5

10.

0.000003 is equal to

a)

3 x 10⁶

b)

3 x 10⁵

c)

3 x 10^-6

d)

3 x 10^-5

11.

8848 is equal to

a)

8.848 x 10³

b)

8.848 x 10²

c)

8.848 x 10

d)

8.848 x 10⁴

12.

1.5 x 10¹¹ is equal to

a)

150000000000

b)

15000000000

c)

1500000000

d)

1500000000000

13.

2.1 x 10^-6 is equal to

a)

0.0000021

b)

0.000021

c)

0.00021

d)

0.0021

14.

2.5 x 10⁴ is equal to

(a)

15.

0.007 x 10¹⁰ is equal to

a)

700000000

b)

7000000

c)

7000

d)

7

16.

The value of $2^{-2}$ is

a)

4

b)

$\frac{1}{4}$

c)

2

d)

$\frac{1}{2}$

17.

The multiplicative inverse of $7^{-2}$ is

a)

$7^2$

b)

7

c)

$\frac{1}{7^2}$

d)

$\frac{1}{7}$

18.

2² x 2³ x 2⁴ is equal to

a)

2²⁴

b)

2^-5

c)

2⁹

d)

2^-9

19.

3^-2 x 3^-5 is equal to

a)

3^-7

b)

3^-3

c)

3^-10

d)

3⁷

20.

$\frac{5^4}{5^2}\ is\ equal\ to$

a)

$5^6$

b)

$5^{-6}$

c)

$5^{-2}$

d)

$5^2$

21.

$The\ value\ of\ \left(3^4\right)^3\ is$

a)

3

b)

$3^{12}$

c)

$3^7$

d)

None of these

22.

3² x 4² is equal to

(a)

23.

$\frac{5^7}{6^7}\ will\ give\ the\ value:$

a)

$\left(\frac{5}{6}\right)^7$

b)

$\left(\frac{5}{6}\right)^0$

c)

$\left(\frac{5}{6}\right)^{-7}$

d)

$\left(\frac{6}{5}\right)^{-7}$

24.

100⁰ + 20⁰ + 5⁰ is equal to

(a)

25.

If (-3)^m+1 x (-3)⁵ = (-3)⁷, then the value of m is

(a)

class 8 (Exponents) 2

Total questions: 25

Worksheet time: 13mins

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