Free Printable 3.1.4 Exponents

1.

Rewrite using a positive exponent.
7^-10

a)

¹/_7¹⁰

b)

7¹⁰

c)

¹/_7^-10

d)

-70

2.

Rewrite using a positive exponent.
g^-7

a)

¹/_g⁷

b)

g⁷

c)

¹/_g^-7

d)

-g⁷

3.

$4^x=16$

a)

x=1

b)

x=2

c)

x=4

d)

x=-3

4.

$3^x=81$

a)

x=27

b)

x=3

c)

x=4

d)

x=9

5.

$3^x=\frac{1}{27}$

a)

x=3

b)

x=-3

c)

x=9

d)

x=-9

6.

$2^x=\frac{1}{16}$

a)

x=8

b)

x=-8

c)

x=4

d)

x=-4

7.

Write with positive exponents:

a)

a^-2

b)

a²

c)

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

d)

2a

8.

Evaluate

a)

-1/64

b)

1/16

c)

1/64

d)

-1/16

9.

To get rid of a negative exponent you need to...

a)

Just erase it

b)

Find the reciprocal

c)

Multiply it by a negative

d)

Add a one to it

10.

$5^x+3=28$

a)

x=0

b)

x=1

c)

x=2

d)

x=-1

11.

$2^x\ -\ 9\ =23$

a)

x=0

b)

x=2

c)

x=3

d)

x=5

12.

$9^x=81$

a)

x=9

b)

x=3

c)

x=2

d)

x=-2

13.

$\left(\frac{1}{3}\right)^x\ =\ 9$

a)

x= -2

b)

x=2

c)

x= -3

d)

x= 3

14.

$\left(\frac{1}{4}\right)^x\ =\ 64$

a)

x = 16

b)

x = -16

c)

x = 3

d)

x = -3

15.

Rewrite using a positive exponent.
w^-13

a)

-w¹³

b)

¹/_w¹³

c)

¹/_w^-13

d)

w¹³

3.1.4 Exponents

Total questions: 15

Worksheet time: 30mins

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