  # Divide by 4 (halve and halve again)

In this worksheet, students work out a quarter of a number by halving and halving again. Key stage:  KS 2

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 to divide by 4 to find one quarter of a number.

One quarter means 1 out of 4 parts.

So find one-quarter of a number, we need to divide it into 4 equal parts, as shown in this bar model. To work out a quarter of a number quickly, we can use a mental method to divide by 4.

First, we halve the number.

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

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.

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

Good luck!

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