Explain how groups of five and ten are related | Maths

Starter quiz

Look at the number sequence: ___, 30, 35 To find the previous multiple of 5 you must ________ 5

add

subtract ✓

multiply
Look at the number sequence: 50, 55, ___ To find the next multiple of 5 you must ________ 5

add ✓

subtract

multiply
The next multiple of 10 from 40 is: 40, ______

'50' ✓
Pencils come in packs of 5 What is the missing multiple from the table? The missing multiple is ______

'60' ✓
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

4 × 10 = 3 × 10 + 10 ✓
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 ✓

4 × 10 = 5 × 10 + 10

Exit quiz

Select the correct missing word or phrase. 5 is __________ 10

half of ✓

double

greater than
10 is __________ 5

half of

double ✓

less than
Which numbers are multiples of both 5 and 10?

15

20 ✓

25

30 ✓
Is the number 30 a multiple of 5, 10 or both?

Only a multiple of 5

Only a multiple of 10

Multiple of both 5 and 10 ✓
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

3 ✓
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

8 ✓

Worksheet

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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

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.

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.