Use knowledge of subtraction to calculate change when paying with whole pounds or notes
Lesson details
Learning outcome
You can use knowledge of subtraction to calculate change when paying with whole pounds or notes
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.
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.
Common misconception
Pupils will sometimes give incorrect number bond examples such as as 63 + 47 = 100
Model adding together the tens first.
Teacher tip
If some pupils are not yet fluent in number bonds within 100 consider including scaffolds such as hundred squares and pre-drawn number lines. Encourage them to make links with number bonds for 10 e.g. 7 + 3 = 10 so 70 + 30 = 100
Licence
Lesson video
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Prior knowledge starter quiz
6 Questions
Q1.What is the number bond that goes with 30 to make 100?
Q2.How many pennies in £1?
Q3.Tick all of the options where the sum is 100
Q4.£1.65 p + 99 p = £
Q5.£1.35 p + 49 p = £1.34 p + 50 p is an example of which strategy?
Q6.Match the word with the correct definition.
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
Assessment exit quiz
6 Questions
Q1.A banana costs 45 p . How much change will I get from £1? Give your answer using the correct unit.
Q2.A book costs £3.60. How much change will I get from £5?
Q3.My shopping comes to £7.38. I give the shopkeeper a £10 note. How much change do I receive?
Q4.The total of my shopping is £13.84. I give the shopkeeper a £20 note. How much change do I receive?
Q5.I have £5 to spend in the shop. I buy a drink for 99 p and a sandwich for £3.25. How much change do I get? p
Q6.Match the money amounts with how much change you would get from a £10 note when buying them.
£7.30
£5.51
£4.49
£2.01
£2.80
£1.01
To help you plan your 4 maths lesson on: Use knowledge of subtraction to calculate change when paying with whole pounds or notes, download all teaching resources for free and adapt to suit your pupils' needs...
To help you plan your 4 maths lesson on: Use knowledge of subtraction to calculate change when paying with whole pounds or notes, download all teaching resources for free and adapt to suit your pupils' needs.
The starter quiz will activate and check your pupils' prior knowledge, with versions available both with and without answers in PDF format.
We use learning cycles to break down learning into key concepts or ideas linked to the learning outcome. Each learning cycle features explanations with checks for understanding and practice tasks with feedback. All of this is found in our slide decks, ready for you to download and edit. The practice tasks are also available as printable worksheets and some lessons have additional materials with extra material you might need for teaching the lesson.
The assessment exit quiz will test your pupils' understanding of the key learning points.
Our video is a tool for planning, showing how other teachers might teach the lesson, offering helpful tips, modelled explanations and inspiration for your own delivery in the classroom. Plus, you can set it as homework or revision for pupils and keep their learning on track by sharing an online pupil version of this lesson.
Explore more key stage 2 maths lessons from the Money: apply efficient strategies when calculating with money unit, dive into the full primary maths curriculum, or learn more about lesson planning.