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Multiply Decimals by Whole Numbers: 1-99

In this worksheet, students practise simple multiplication of decimals.

'Multiply Decimals by Whole Numbers: 1-99' worksheet

Key stage:  KS 2

Curriculum topic:   Maths and Numerical Reasoning

Curriculum subtopic:   Decimals

Difficulty level:  

Worksheet Overview

QUESTION 1 of 10

This worksheet is a basic introduction to multiplication of simple decimals.

 

Example

Complete the following multiplications.

We know that 31 x 8 = 248

 

What is: 

3.1 x 8 = ?

and

31 x 0.8 = ?

 

Answer

When a number in the question is divided by 10, we must also divide the answer by 10.

 

                                     

 

 

 

 
 

 

Answers are both 24.8

Complete the following multiplications.

We know that 89 x 7 = 623

 

What is:

8.9 x 7 = ?

and

89 x 0.7 = ?

 Answer
8.9 x 7
89 x 0.7

Complete the following multiplications.

We know that 91 x 1 = 91

 

What is:

9.1 x 1 = ?

and

91 x 0.1 = ?

 Answer
9.1 x 1
91 x 0.1

Complete the following multiplications.

We know that 15 x 8 = 120

 

What is:

1.5 x 8 = ?

and

15 x 0.8 = ?

 Answer
1.5 x 8
15 x 0.8

Complete the following multiplications.

We know that 80 x 7 = 560

 

What is:

8 x 70 = ?

and

80 x 0.7 = ?

 Answer
8 x 70
80 x 0.7

Complete the following multiplications.

We know that 23 x 3 = 69

 

What is:

2.3 x 3 = ?

and

23 x 0.3 = ?

 Answer
2.3 x 3
23 x 0.3

Complete the following multiplications.

We know that 27 x 3 = 81

 

What is:

2.7 x 3 = ?

and

27 x 30 = ?

 Answer
2.7 x 3
27 x 30

Complete the following multiplications.

We know that 54 x 4 = 216

 

What is:

5.4 x 4 = ?

and

54 x 0.4 = ?

 Answer
5.4 x 4
54 x 0.4

Complete the following multiplications.

We know that 24 x 1 = 24

 

What is:

24 x 10 = ?

and

24 x 0.1 = ?

 Answer
24 x 10
24 x 0.1

Complete the following multiplications.

We know that 20 x 7 = 140

 

What is:

2 x 70 = ?

and

20 x 0.7 = ?

 Answer
2 x 70
20 x 0.7

Complete the following multiplications.

We know that 55 x 3 = 165

 

What is:

5.5 x 3 = ?

and

55 x 0.3 = ?

 Answer
5.5 x 3
55 x 0.3
  • Question 1

Complete the following multiplications.

We know that 89 x 7 = 623

 

What is:

8.9 x 7 = ?

and

89 x 0.7 = ?

CORRECT ANSWER
 Answer
8.9 x 7
89 x 0.7
  • Question 2

Complete the following multiplications.

We know that 91 x 1 = 91

 

What is:

9.1 x 1 = ?

and

91 x 0.1 = ?

CORRECT ANSWER
 Answer
9.1 x 1
91 x 0.1
  • Question 3

Complete the following multiplications.

We know that 15 x 8 = 120

 

What is:

1.5 x 8 = ?

and

15 x 0.8 = ?

CORRECT ANSWER
 Answer
1.5 x 8
15 x 0.8
  • Question 4

Complete the following multiplications.

We know that 80 x 7 = 560

 

What is:

8 x 70 = ?

and

80 x 0.7 = ?

CORRECT ANSWER
 Answer
8 x 70
80 x 0.7
  • Question 5

Complete the following multiplications.

We know that 23 x 3 = 69

 

What is:

2.3 x 3 = ?

and

23 x 0.3 = ?

CORRECT ANSWER
 Answer
2.3 x 3
23 x 0.3
  • Question 6

Complete the following multiplications.

We know that 27 x 3 = 81

 

What is:

2.7 x 3 = ?

and

27 x 30 = ?

CORRECT ANSWER
 Answer
2.7 x 3
27 x 30
  • Question 7

Complete the following multiplications.

We know that 54 x 4 = 216

 

What is:

5.4 x 4 = ?

and

54 x 0.4 = ?

CORRECT ANSWER
 Answer
5.4 x 4
54 x 0.4
  • Question 8

Complete the following multiplications.

We know that 24 x 1 = 24

 

What is:

24 x 10 = ?

and

24 x 0.1 = ?

CORRECT ANSWER
 Answer
24 x 10
24 x 0.1
  • Question 9

Complete the following multiplications.

We know that 20 x 7 = 140

 

What is:

2 x 70 = ?

and

20 x 0.7 = ?

CORRECT ANSWER
 Answer
2 x 70
20 x 0.7
  • Question 10

Complete the following multiplications.

We know that 55 x 3 = 165

 

What is:

5.5 x 3 = ?

and

55 x 0.3 = ?

CORRECT ANSWER
 Answer
5.5 x 3
55 x 0.3
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