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Repeated Addition or Multiplication of Decimals by a Whole Number

In this worksheet, students multiply decimals by whole numbers.

'Repeated Addition or Multiplication of Decimals by a Whole Number' worksheet

Key stage:  KS 3

Curriculum topic:  Number

Curriculum subtopic:  Use Four Operations for All Numbers

Difficulty level:  

down

Worksheet Overview

QUESTION 1 of 10

In this worksheet, you must multiply decimal numbers by a whole number.

 

Example:

Here are two methods for working out 4 lots of 1.64.

 

Find four lots of 1.64.
Here we add 1.64 four times.
     1.64
     1.64
     1.64
     1.64   

Here we multiply 1.64 by 4.


Remember, multiply 164 by 4
and divide your answer by 100.
 

164  
       4 x
400      4 x 100
240      4 x 60
       16      4 x 4
656    

 

Answer: 656 ÷ 100 = 6.56.

Your two answers should be the same, but it is quicker to multiply when using larger numbers.

Find the answer to the given question and write just the answer in the box below.

8 lots of 5.2 =
 ?

Find the answer to the given question and write just the answer in the box below.

8 lots of 1.95 =
 ?

Find the answer to the given question and write just the answer in the box below.

9 lots of 9.1 =
 ?

Find the answer to the given question and write just the answer in the box below.

9 lots of 9.37 =
?

Find the answer to the given question and write just the answer in the box below.

10 lots of 8.9 =
 ?

Find the answer to the given question and write just the answer in the box below. 

10 lots of 2.24 =
?

Find the answer to the given question and write just the answer in the box below.

10 lots of 3.2 =
 ?

Find the answer to the given question and write just the answer in the box below. 

10 lots of 4.63 =
 ?

Find the answer to the given question and write just the answer in the box below.

7 lots of 7.2 =
?

Find the answer to the given question and write just the answer in the box below.

5 lots of 16.2 =
 ?
  • Question 1

Find the answer to the given question and write just the answer in the box below.

8 lots of 5.2 =
 ?
CORRECT ANSWER
41.6
  • Question 2

Find the answer to the given question and write just the answer in the box below.

8 lots of 1.95 =
 ?
CORRECT ANSWER
15.6
  • Question 3

Find the answer to the given question and write just the answer in the box below.

9 lots of 9.1 =
 ?
CORRECT ANSWER
81.9
  • Question 4

Find the answer to the given question and write just the answer in the box below.

9 lots of 9.37 =
?

CORRECT ANSWER
84.33
  • Question 5

Find the answer to the given question and write just the answer in the box below.

10 lots of 8.9 =
 ?
CORRECT ANSWER
89
  • Question 6

Find the answer to the given question and write just the answer in the box below. 

10 lots of 2.24 =
?
CORRECT ANSWER
22.4
  • Question 7

Find the answer to the given question and write just the answer in the box below.

10 lots of 3.2 =
 ?
CORRECT ANSWER
32
  • Question 8

Find the answer to the given question and write just the answer in the box below. 

10 lots of 4.63 =
 ?
CORRECT ANSWER
46.3
  • Question 9

Find the answer to the given question and write just the answer in the box below.

7 lots of 7.2 =
?
CORRECT ANSWER
50.4
  • Question 10

Find the answer to the given question and write just the answer in the box below.

5 lots of 16.2 =
 ?
CORRECT ANSWER
81
---- OR ----

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