Year 4 - Maths
Convert quantities of money between pounds and pence
Money: apply efficient strategies when calculating with money
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This pupil-friendly study guide includes a unit summary, clear notes, common mistakes, and quick questions with answers.
Unit Summary
In this unit pupils will explain represent and compare whole pounds and pence. They will convert quantities of money between pounds and pence and use the most efficient and reliable strategy to find the change.
Lesson Summary
You will learn to convert quantities of money between pounds and pence.
Key Notes
- There are 100p in £1.00 so £3.00 is equivalent to 300p
- There are 10 pennies in 10p so 4 ten pences are equivalent to 40 one pences.
- Use knowledge of equivalent values to convert between pounds and pence.
- £3.45 is equivalent to 300p + 45p which is equal to 345p
Vocabulary To Learn
- convert: When a value is changed from one form to another, it is converted.
- partition: The act of splitting an object or value down into smaller parts.
- unitising: Unitising means taking separate parts and making them into one whole.
Common Mistakes To Avoid
- Pupils incorrectly multiply and divide by 100 when converting, or multiply and divide by 10 instead.
3 Quick Questions (With Answers)
1. Solve this in steps: explain the method from this lesson and why each step matters.
There are 100p in £1.00 so £3.00 is equivalent to 300p. There are 10 pennies in 10p so 4 ten pences are equivalent to 40 one pences.
2. Use this key word in a maths sentence and explain it clearly. 'convert'
When a value is changed from one form to another, it is converted. Use this word when showing your method, then check your final answer is reasonable.
3. Spot and fix this common maths mistake.
Mistake: Pupils incorrectly multiply and divide by 100 when converting, or multiply and divide by 10 instead. Correction: Continue to emphasise the relationship between one pound and 100 pence and encourage pupils to spot patterns e.g. £2 = 200 p, £3 = 300 p.
More Lessons In This Unit
- Calculate change when purchasing several items Study Guide
- Explain and represent whole pounds and pence as a quantity of money Study Guide
- Explain and represent whole pounds as a quantity of money Study Guide
- Explain how to compare amounts of money without converting Study Guide
- Solve a range of problems, including finding change Study Guide
- Use and explain the most efficient strategies when adding quantities of money Study Guide
- Use and explain the most efficient strategies when subtracting quantities of money Study Guide
- Use knowledge of addition to add commonly used prices efficiently Study Guide
- Use knowledge of subtraction to calculate change when paying with whole pounds or notes Study Guide
Browse all guides in the Year 4 Maths guide library.