New
New
Year 3

# Use knowledge of the divisibility rules for divisors 8 to solve problems

I can solve problems using knowledge of the divisibility rules for 8

New
New
Year 3

# Use knowledge of the divisibility rules for divisors 8 to solve problems

I can solve problems using knowledge of the divisibility rules for 8

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## Lesson details

### Key learning points

1. If you can halve a multiple of 4 then it is a multiple of 8 and divisible by 8
2. All numbers divisible by 8 are also divisible by 4 and 2
3. Multiples of 8 are all multiples of both 2 and 4

### Common misconception

Lack of fluency in 4s and or 8s times tables and understanding when tackling word problems.

Clearly model highlighting key words of worded problems to understand the problem and the operation required for the calculation. Continue to use language stems such as 'If I know...' 'Then I know...,' to support mathematical thinking.

### Keywords

• Halve - A half is one of two equal parts of a whole.

• Divisible - Divisibility is when division of a number results in another whole number.

### Licence

This content is © Oak National Academy Limited (2024), licensed on Open Government Licence version 3.0 except where otherwise stated. See Oak's terms & conditions (Collection 2).

## Starter quiz

### 6 Questions

Q1.
What single number fits into each of these gaps to make this correct? 16 ÷ 8 = 16 ÷ ___ ÷___ ÷___
Q2.
Match the numbers so that one is half of the amount of the other.

10

15

20

35

45

Q3.
Select the multiples of 4
37
47
Q4.
Select the multiples of 8
100
300
Q5.
A bakery has baked 50 cupcakes. It packs them into full boxes of 4 Can 49 cupcakes be packed into full boxes of 4?
Yes
Q6.
A bakery has baked 170 cupcakes. It packs them into boxes of 4 Can all 170 cupcakes be packed?
Yes

## Exit quiz

### 6 Questions

Q1.
Look at the number sequence: 8, 16, 24, ___, 40, 48 . What is the missing number?
Q2.
Match the numbers so that one is half of the amount of the other.

100

150

200

350

450

Q3.
Select the multiples of 8
37
68
Q4.
Select the multiples of 4
50