# Negative Indices

In this worksheet, students understand and use negative indices.

Key stage:  KS 3

Curriculum topic:   Number

Curriculum subtopic:   Understand Integer Powers/Real Roots

Difficulty level:

### QUESTION 1 of 10

A negative index means "1 over".

So:

And:

Select the option which is equal to:

 1 23

23

3-2

2-3

Select the option which is equal to:

 1 32

23

3-2

2-3

Select the option which is equal to:

 1 34

43

3-4

4-3

Select the option which is equal to:

 1 24

2-4

24

4-2

Select the option which is equal to:

 2 34

2-4

2 x 24

2 x 3-4

Select the option which is equal to:

 1 x4

2-4

4-x

x-4

Select the option which is equal to:

 1 a2

a-2

2-a

a2

Select the option which is equal to:

 3 a2

3a-2

9-a

a-6

Select the option which is equal to:

 4 x3

4x-2

12-x

4x-3

Select the option which is equal to:

 3 a3

3a3

3a-3

27a-3

• Question 1

Select the option which is equal to:

 1 23

2-3
EDDIE SAYS
If the index number is on the denominator of the fraction. It means it must be a negative index.
 1 ab
= a-b
• Question 2

Select the option which is equal to:

 1 32

3-2
EDDIE SAYS
If the index number is on the denominator of the fraction. It means it must be a negative index.
 1 ab
= a-b
• Question 3

Select the option which is equal to:

 1 34

3-4
EDDIE SAYS
If the index number is on the denominator of the fraction. It means it must be a negative index.
 1 ab
= a-b
• Question 4

Select the option which is equal to:

 1 24

2-4
EDDIE SAYS
If the index number is on the denominator of the fraction. It means it must be a negative index.
 1 ab
= a-b
• Question 5

Select the option which is equal to:

 2 34

2 x 3-4
EDDIE SAYS

If the index number is on the denominator of the fraction. It means it must be a negative index.

 c ab
= c x a-b
• Question 6

Select the option which is equal to:

 1 x4

x-4
EDDIE SAYS
If the index number is on the denominator of the fraction. It means it must be a negative index.
 1 ab
= a-b
• Question 7

Select the option which is equal to:

 1 a2

a-2
EDDIE SAYS
If the index number is on the denominator of the fraction. It means it must be a negative index.
 1 ab
= a-b
• Question 8

Select the option which is equal to:

 3 a2

3a-2
EDDIE SAYS

If the index number is on the denominator of the fraction. It means it must be a negative index.

 c ab
= c x a-b
• Question 9

Select the option which is equal to:

 4 x3

4x-3
EDDIE SAYS

If the index number is on the denominator of the fraction. It means it must be a negative index.

 c ab
= c x a-b
• Question 10

Select the option which is equal to:

 3 a3

3a-3
EDDIE SAYS

If the index number is on the denominator of the fraction. It means it must be a negative index.

 c ab
= c x a-b
---- OR ----

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