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Multiplication: Finding Four Times a Number

In this worksheet, students multiply numbers by 4 by doubling and doubling again.

'Multiplication: Finding Four Times a Number' worksheet

Key stage:  KS 2

Curriculum topic:  Number: Multiplication and Division

Curriculum subtopic:  Write Multiplication/Division Statements for Known Tables

Difficulty level:  

down

Worksheet Overview

QUESTION 1 of 10

In this worksheet we use a quick number trick to multiply numbers by four.

 

Here are five candles.

 

If we double this number we get 2 × 5 = 10 candles

       

 

If we double this number again we get 2 × 10 = 20 candles

                                 

 

This is 4 lots of the original 5 candles so 4 × 5 = 20

To multiply a number by 4, we double it and double the answer again.

 

 

Example

Find 4 × 5 by using this table to find first A and then B.

 

Twice 5  is 
A
Double 
A
 is 
B
Then 4 × 5  is 
B

 

Answer

Twice 5 is 10, so A is 10.

Double 10 is 20, so B is 20.

So 4 × 5 is 20.

Find 4 × 5

 

Twice 5  is 
A
Double 
A
 is 
B
Then 4 × 5  is 
B
 Answers
A
B

Find 4 × 6

 

Twice 6  is 
A
Double 
A
 is 
B
Then 4 × 6  is 
B
 Answers
A
B

Find 4 × 2

 

Twice 2  is 
A
Double 
A
 is 
B
Then 4 × 2  is 
B
 Answers
A
B

Find 4 × 3

 

Twice 3  is 
A
Double 
A
 is 
B
Then 4 × 3  is 
B
 Answers
A
B

Find 4 × 9

 

Twice 9  is 
A
Double 
A
 is 
B
Then 4 × 9  is 
B
 Answers
A
B

Find 4 × 8

 

Twice 8  is 
A
Double 
A
 is 
B
Then 4 × 8  is 
B
 Answers
A
B

Find 4 × 4

 

Twice 4  is 
A
Double 
A
 is 
B
Then 4 × 4  is 
B
 Answers
A
B

Find 4 × 10

 

Twice 10  is 
A
Double 
A
 is 
B
Then 4 × 10  is 
B
 Answers
A
B

Find 4 × 1

 

Twice 1  is 
A
Double 
A
 is 
B
Then 4 × 1  is 
B
 Answers
A
B

Find 4 × 7

 

Twice 7  is 
A
Double 
A
 is 
B
Then 4 × 7  is 
B
 Answers
A
B
  • Question 1

Find 4 × 5

 

Twice 5  is 
A
Double 
A
 is 
B
Then 4 × 5  is 
B
CORRECT ANSWER
 Answers
A
B
  • Question 2

Find 4 × 6

 

Twice 6  is 
A
Double 
A
 is 
B
Then 4 × 6  is 
B
CORRECT ANSWER
 Answers
A
B
  • Question 3

Find 4 × 2

 

Twice 2  is 
A
Double 
A
 is 
B
Then 4 × 2  is 
B
CORRECT ANSWER
 Answers
A
B
  • Question 4

Find 4 × 3

 

Twice 3  is 
A
Double 
A
 is 
B
Then 4 × 3  is 
B
CORRECT ANSWER
 Answers
A
B
  • Question 5

Find 4 × 9

 

Twice 9  is 
A
Double 
A
 is 
B
Then 4 × 9  is 
B
CORRECT ANSWER
 Answers
A
B
  • Question 6

Find 4 × 8

 

Twice 8  is 
A
Double 
A
 is 
B
Then 4 × 8  is 
B
CORRECT ANSWER
 Answers
A
B
  • Question 7

Find 4 × 4

 

Twice 4  is 
A
Double 
A
 is 
B
Then 4 × 4  is 
B
CORRECT ANSWER
 Answers
A
B
  • Question 8

Find 4 × 10

 

Twice 10  is 
A
Double 
A
 is 
B
Then 4 × 10  is 
B
CORRECT ANSWER
 Answers
A
B
  • Question 9

Find 4 × 1

 

Twice 1  is 
A
Double 
A
 is 
B
Then 4 × 1  is 
B
CORRECT ANSWER
 Answers
A
B
  • Question 10

Find 4 × 7

 

Twice 7  is 
A
Double 
A
 is 
B
Then 4 × 7  is 
B
CORRECT ANSWER
 Answers
A
B
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