New
New
Year 4

# Explain the relationship between adjacent multiples of nine

I can explain the relationship between adjacent multiples of nine.

New
New
Year 4

# Explain the relationship between adjacent multiples of nine

I can explain the relationship between adjacent multiples of nine.

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## Lesson details

### Key learning points

1. Adjacent multiples of nine have a difference of 9
2. If you add 9 to a multiple of nine you get the next multiple of nine.
3. If you subtract 9 from a multiple of nine you get the previous multiple of nine.

### Common misconception

Pupils may not understand the keyword adjacent and have difficult understanding the word problems.

Model correct usage in a range of contexts including labelling abstract equations and using the term to identify the known elements in worded problems. Take time to show adjacent on number lines connecting to addition and subtraction of equal groups.

### Keywords

• Adjacent - Adjacent means next to each other.

• Multiple - A multiple is the result of multiplying a number by another whole number.

The focus of this lesson is using knowledge of multiples of three, and connecting this to adjacent multiples. Chorally rehearsing the 9 times tables at any given opportunity and playing games supports fluency.
Teacher tip

### 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.
Identify the multiples of 9
29
73
Q2.
Which multiple of 9 is missing from this sequence? 9, 18, 27, , 45, 54
Q3.
Which symbol makes this correct? 45 ___ 54
>
=
Q4.
What is 7 × 9 =
Q5.
What is 0 × 9 =
Correct Answer: 0, zero
Q6.
What is the missing number? × 9 = 54
Correct Answer: 6, six

## Exit quiz

### 6 Questions

Q1.
Select the adjacent multiple of 9 that comes after 36
37
39
54
Q2.
Select the adjacent multiples of 9 for the number 72
63 and 73
60 and 80
Correct answer: 63 and 81
81 and 90
Q3.
Which symbol goes in the gap to make this correct? 11 × 9 = 10 × 9 ___ 9
×
÷
Q4.
Which symbol goes in the gap to make this correct? 6 × 9 = 5 × 9 ___ 9