New

New

Year 2

# Solve problems including those involving giving change

I can solve money problems including those which involve giving change.

New

New

Year 2

# Solve problems including those involving giving change

I can solve money problems including those which involve giving change.

## Lesson details

### Key learning points

- Strategies that are already known can be used to help when solving money problems.
- Addition and subtraction facts can also be used to solve money problems efficiently.
- A larger value coin or note can be used to pay if the correct amount cannot be made with coins or notes.
- When a larger value coin or note is used to pay, the extra money is given back as change.

### Common misconception

When subtracting, children may partition both parts into tens and ones then subtract which leads to an incorrect answer when the tens are bridged.

Explicitly discuss if the tens will be bridged before calculating and come to generalisation that, in subtracting, only one part is partitioned.

### Keywords

Change - Change is the money returned after paying for something with more money than it costs.

### 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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## Starter quiz

Download starter quiz

### 6 Questions

Q1.

Which of the following shows the most efficient way to make 78 p?

20 p + 20 p + 20 p + 10 p + 2 p + 2 p + 2 p + 2 p

50 p + 20 p + 2 p + 2 p + 2 p + 2 p

Q2.

Which of the following is the most efficient way to make 53 p using the coins shown?

20 p + 10 p + 20 p + 1 p + 2 p

50 p + 1 p + 1 p + 1 p

Q3.

Which equation shows the most efficient way to pay for this apple?

40 p + 40 p + 6 p

20 p + 20 p + 20 p + 20 p + 5 p + 1 p

Q4.

Which equation shows the most efficient way to make £8?

£8 = £1 + £1 + £1 + £1 + £1 + £1 + £1 + £1

£8 = £2 + £2 + £2 + £1 + £1

Q5.

Which expression shows the most efficient way to make £38 using both notes and coins?

£10 + £2 + £5 + £1 + £10 + £10

£30 + £8

Q6.

An item costs the same as 47 one-pound coins. If we want to pay for it in the most efficient way, which of the following options shows the most efficient way to pay?

£10 + £10 + £10 + £10 + £5 + £2

£40 + £7

## Exit quiz

Download exit quiz

### 6 Questions

Q1.

The children set up a toy shop in the classroom and give everything a price. Jun takes 71 p from the toy money and chooses this car to buy. If he bought it, how much money would he have left? p

Q2.

Sofia wonders how much toy money she will have to save to buy the two toys from their toy shop. p

Q3.

Two children each use the toy money to buy a toy from their classroom toy shop. Together, they spend 95 p Which two toys did they buy?

The car and the rocket

The dinosaur and the robot

Q4.

Sofia takes 50 p to their role play toy shop. She buys a toy which costs 21 p. How much change will she receive? p

Q5.

Jun had the coins shown and bought a book, which the children had priced at 43 p in the role play shop. Which bar model would you use to find out how much change he would receive?

b

c

Q6.

Jun wants to buy a toy costing 51 p and he has the coins shown. Which of the following will he use to pay?

A

B