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  1. Maths
  2. Year 9
  3. Fractions, Decimals and Percentages
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Multiplying and Dividing by Tenths

In this worksheet, students practise multiplying and dividing by tenths. They should first attempt their answers mentally.

'Multiplying and Dividing by Tenths' worksheet

Key stage:  KS 3

Curriculum topic:   Number

Curriculum subtopic:   Use Four Operations for All Numbers

Difficulty level:  

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Worksheet Overview

QUESTION 1 of 10

This worksheet is about multiplication and division by tenths.

 

Examples

Work out the following problems mentally.

0.9 × 0.9  = 
A
0.9 × 9000
  =
 B
8.1 ÷ 9000
  =
 C
8.1 ÷ 0.9  =
 D

 

Answers

0.9 × 0.9  = 
0.81
0.9 × 9000
  =
8100
8.1 ÷ 9
  =
0.9
8.1 ÷ 0.9  =
9

Work out the following problems mentally.

0.2 × 0.2  = 
A
0.2 × 20  =
 B
0.4 ÷ 20  =
 C
0.4 ÷ 0.2  =
 D

Column A

Column B

A
4
B
0.04
C
2
D
0.02

Work out the following problems mentally.

0.5 × 0.5  = 
A
0.5 × 500
  =
 B
2.5 ÷ 5  =
 C
2.5 ÷ 0.5  =
 D

Column A

Column B

A
250
B
0.25
C
5
D
0.5

Work out the following problems mentally.

0.7 × 0.7  = 
A
0.7 × 7000
  =
 B
4.9 ÷ 7000  =
 C
4.9 ÷ 0.7  =
 D

Column A

Column B

A
0.49
B
4900
C
0.0007
D
7

Work out the following problems mentally.

0.1 × 0.1  = 
A
0.1 × 1000
  =
 B
0.1 ÷ 100  =
 C
0.1 ÷ 0.1  =
 D

Column A

Column B

A
0.001
B
0.01
C
100
D
1

Work out the following problems mentally.

0.4 × 0.4  = 
A
0.4 × 4000
  =
 B
1.6 ÷ 4  =
 C
1.6 ÷ 0.4  =
 D

Column A

Column B

A
0.4
B
4
C
1600
D
0.16

Work out the following problems mentally.

0.1 × 0.1  = 
A
0.1 × 100
  =
 B
0.1 ÷ 100  =
 C
0.1 ÷ 0.1  =
 D

Column A

Column B

A
0.01
B
1
C
0.001
D
10

Work out the following problems mentally.

0.2 × 0.2  = 
A
0.2 × 200
  =
 B
0.4 ÷ 200  =
 C
0.4 ÷ 0.2  =
 D

Column A

Column B

A
0.002
B
2
C
40
D
0.04

Work out the following problems mentally.

0.5 × 0.5  = 
A
0.5 × 5000
  =
 B
2.5 ÷ 5  =
 C
2.5 ÷ 0.5  =
 D

Column A

Column B

A
5
B
0.25
C
0.5
D
2500

Work out the following problems mentally.

0.9 × 0.9  = 
A
0.9 × 900
  =
 B
8.1 ÷ 0.09  =
 C
8.1 ÷ 0.9  =
 D

Column A

Column B

A
90
B
0.81
C
9
D
810

Work out the following problems mentally.

0.8 × 0.8  = 
A
0.8 × 80
  =
 B
6.4 ÷ 0.08  =
 C
6.4 ÷ 0.8  =
 D

Column A

Column B

A
80
B
64
C
0.64
D
8
  • ANSWERS
  • Question 1

Work out the following problems mentally.

0.2 × 0.2  = 
A
0.2 × 20  =
 B
0.4 ÷ 20  =
 C
0.4 ÷ 0.2  =
 D
CORRECT ANSWER

Column A

Column B

A
0.04
B
4
C
0.02
D
2
  • ANSWERS
  • Question 2

Work out the following problems mentally.

0.5 × 0.5  = 
A
0.5 × 500
  =
 B
2.5 ÷ 5  =
 C
2.5 ÷ 0.5  =
 D
CORRECT ANSWER

Column A

Column B

A
0.25
B
250
C
0.5
D
5
  • ANSWERS
  • Question 3

Work out the following problems mentally.

0.7 × 0.7  = 
A
0.7 × 7000
  =
 B
4.9 ÷ 7000  =
 C
4.9 ÷ 0.7  =
 D
CORRECT ANSWER

Column A

Column B

A
0.49
B
4900
C
0.0007
D
7
  • ANSWERS
  • Question 4

Work out the following problems mentally.

0.1 × 0.1  = 
A
0.1 × 1000
  =
 B
0.1 ÷ 100  =
 C
0.1 ÷ 0.1  =
 D
CORRECT ANSWER

Column A

Column B

A
0.01
B
100
C
0.001
D
1
  • ANSWERS
  • Question 5

Work out the following problems mentally.

0.4 × 0.4  = 
A
0.4 × 4000
  =
 B
1.6 ÷ 4  =
 C
1.6 ÷ 0.4  =
 D
CORRECT ANSWER

Column A

Column B

A
0.16
B
1600
C
0.4
D
4
  • ANSWERS
  • Question 6

Work out the following problems mentally.

0.1 × 0.1  = 
A
0.1 × 100
  =
 B
0.1 ÷ 100  =
 C
0.1 ÷ 0.1  =
 D
CORRECT ANSWER

Column A

Column B

A
0.01
B
10
C
0.001
D
1
  • ANSWERS
  • Question 7

Work out the following problems mentally.

0.2 × 0.2  = 
A
0.2 × 200
  =
 B
0.4 ÷ 200  =
 C
0.4 ÷ 0.2  =
 D
CORRECT ANSWER

Column A

Column B

A
0.04
B
40
C
0.002
D
2
  • ANSWERS
  • Question 8

Work out the following problems mentally.

0.5 × 0.5  = 
A
0.5 × 5000
  =
 B
2.5 ÷ 5  =
 C
2.5 ÷ 0.5  =
 D
CORRECT ANSWER

Column A

Column B

A
0.25
B
2500
C
0.5
D
5
  • ANSWERS
  • Question 9

Work out the following problems mentally.

0.9 × 0.9  = 
A
0.9 × 900
  =
 B
8.1 ÷ 0.09  =
 C
8.1 ÷ 0.9  =
 D
CORRECT ANSWER

Column A

Column B

A
0.81
B
810
C
90
D
9
  • ANSWERS
  • Question 10

Work out the following problems mentally.

0.8 × 0.8  = 
A
0.8 × 80
  =
 B
6.4 ÷ 0.08  =
 C
6.4 ÷ 0.8  =
 D
CORRECT ANSWER

Column A

Column B

A
0.64
B
64
C
80
D
8
---- OR ----

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