New
New
Year 2
Explain how groups of five and ten are related
I can explain how groups of five and ten are related.
New
New
Year 2
Explain how groups of five and ten are related
I can explain how groups of five and ten are related.
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Lesson details
Key learning points
- Five is half of ten
- __ groups of 5 will be half __ groups of 10
- Ten is double 5
- __ groups of 10 will be double __ groups of 5
Keywords
Related - The relationship between a set of values.
Double - To become twice as many / to multiply by two.
Half - One of two equal parts of a whole. / To divide into two equal parts.
Common misconception
Pupils may assume that multiples of 5 and 10 are multiples of 10
Show children the relationship between 5s and 10s using the multiplication chart and number line. Make clear that even multiples of 5 are multiples of 10 Not all multiples of 10 are multiples of 5 Encourage discussions to highlight the relationship.
Continue to chorally rehearse 5s and 10s within and outside of this lesson. The more children can recall the more confident they will feel.
Teacher tip
Licence
This content is © Oak National Academy Limited (2025), licensed on
Open Government Licence version 3.0
except where otherwise stated. See Oak's terms & conditions (Collection 2).Lesson video
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Starter quiz
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6 Questions
Q1.
Look at the number sequence: ___, 30, 35
To find the previous multiple of 5 you must ________ 5
add
multiply
Q2.
Look at the number sequence: 50, 55, ___ To find the next multiple of 5 you must ________ 5
subtract
multiply
Q3.
The next multiple of 10 from 40 is: 40,
Q4.
Pencils come in packs of 5 What is the missing multiple from the table? The missing multiple is
Q5.
Look at the representation below. Select the correct equation which shows this.
3 × 10 = 3 × 10 − 10
3 × 10 = 3 × 10 + 10
4 × 10 = 4 × 10 + 10
Q6.
Look at the representation below. Select the correct equation which shows this.
4 × 10 = 3 × 10 − 10
4 × 10 = 4 × 10 + 10
4 × 10 = 5 × 10 + 10
Exit quiz
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6 Questions
Q1.
Select the correct missing word or phrase. 5 is __________ 10
double
greater than
Q2.
10 is __________ 5
half of
less than
Q3.
Which numbers are multiples of both 5 and 10?
15
25
Q4.
Is the number 30 a multiple of 5, 10 or both?
Only a multiple of 5
Only a multiple of 10
Q5.
If I count from 30 to 59, there are 6 multiples of 5 that I would say. This means that there are ___ multiples of 10 that I would say.
6
12
Q6.
If I count from 60 to 99, there are 4 multiples of 10 that I would say. This means that there are ___ multiples of 5 that I would say.
4
5