# Use knowledge of subtraction to calculate change when paying with whole pounds or notes

You can use knowledge of subtraction to calculate change when paying with whole pounds or notes

# Use knowledge of subtraction to calculate change when paying with whole pounds or notes

You can use knowledge of subtraction to calculate change when paying with whole pounds or notes

## Slide deck

## Lesson details

### Key learning points

- The whole is the amount of money offered, one part is the total cost and the other part is the change.
- The change is the difference between the total cost and the amount of money given.
- You can use different subtraction strategies to calculate change.

### Common misconception

Pupils will sometimes give incorrect number bond examples such as as 63 + 47 = 100

Model adding together the tens first.

### Keywords

Difference - The result of subtracting one number from another is the difference.

Change - In money, change is the difference between the amount of money you use to pay and the value of what you are buying.

Number bonds - Number bonds are pairs of numbers which sum together to make another 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).

## Video

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## Worksheet

## Starter quiz

### 6 Questions

pairs of numbers which sum together to make another number

the result of subtracting one number from another

the difference between the value and the money used to pay

## Exit quiz

### 6 Questions

£7.30

£5.51

£4.49

£2.01

£2.80

£1.01