# Scale known multiplication facts by 10

I can use unitising and multiplying by 10 to scale multiplication facts.

# Scale known multiplication facts by 10

I can use unitising and multiplying by 10 to scale multiplication facts.

## Slide deck

## Lesson details

### Key learning points

- If two groups of 4 are equal to 8 then two group of 4 tens is equal to 8 tens or 80
- By thinking of a number of 10s, you can scale up and work out the 20, 40 and 80 times tables
- By thinking of a number of 10s, you can scale up and work out ten times the 2, 4 and 8 times tables

### Common misconception

Lack of fluency in multiplication facts and / or understanding of word problems. 'Adding a 0' at the end.

Use language of unitisation to support pupils mathematical thinking. Clear modelling of steps in how to find the operation for the calculation. Use gattegno chart or place value chart to highlight scaling by 10.

### Keywords

Scale / scaling - Scaling is when a given quantity is made ___ times the size. In this lesson, scaling will involve making values 10 times the size.

### 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).

## Video

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## Worksheet

## Starter quiz

### 6 Questions

24

40

28

48

80

40

20

120

## Exit quiz

### 6 Questions

8 × 110

70 × 4

20 × 2

6 × 80