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Divide by 4 Using Halving and Halving Again

In this worksheet, students will work out a quarter of a number by halving and halving again.

'Divide by 4 Using Halving and Halving Again' worksheet

Key stage:  KS 2

Year:  Year 3 Maths worksheets

Curriculum topic:   Number: Multiplication and Division

Curriculum subtopic:   Use Multiplication/Division Facts (3, 4 and 8)

Difficulty level:  

Worksheet Overview

In this activity, we will be learning a method of dividing by 4 to find one quarter of a number.

 

One quarter means 1 out of 4 parts. 

So to find one quarter of a number, we need to divide it into 4 equal parts, as shown in this bar model. 

 

bar model showing quarters

 

To work out a quarter of a number quickly, we can use a mental method to divide by 4.

 

First, we halve the number.

Then we halve that answer.

 

This diagram shows how to use this method to find one quarter of 24.

 

Half of  24  is 
12
Half of 
12
 is 
6
A quarter of  24  is 
6
24 ÷ 4 = 
6

 

Let's try an example question together. 

 

Example

Use this table to find 64 ÷ 4 by finding A and B.

  

Half of  64  is 
A
Half of 
A
 is 
B
A quarter of  64  is 
B
64 ÷ 4 = 
B

 

Answer 

First, we find half of 64. This is A.

A is worth 32.

 

Next, we find half of A (32), which is 16.

 

Half of  64  is 
32
Half of 
32
 is 
16
A quarter of  64  is 
16
64 ÷ 4 = 
16

 

So A is 32 and B is 16.

One quarter of 64 is 16.

 

happy boy
 


Now that you know this method, it's time to try dividing some numbers by 4.

Good luck!

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