Year 4 - Maths
Explain how to compare amounts of money without converting
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 explain how to compare amounts of money without converting.
Key Notes
- Use understanding of comparing numbers with two decimal places to compare money.
- If the pounds value is the same, look to the 10p column to compare the amounts of money.
- If the pounds and 10p values are the same, look to the 1p column to compare the amounts of money.
Vocabulary To Learn
- compare: You can compare to find out what is the same and what is different.
- inequality symbol: An inequality symbol is used to show that one number or measurement is not equal to another.
- greater than / less than: Greater than means a number is bigger than another number and less than means it is smaller.
- ascending: Ascending order is when items are arranged from smallest to largest.
- descending: Descending order is when items are arranged from largest to smallest.
Common Mistakes To Avoid
- Pupils may think that if money amount is made up of more coins it must have a higher value.
3 Quick Questions (With Answers)
1. Solve this in steps: explain the method from this lesson and why each step matters.
Use understanding of comparing numbers with two decimal places to compare money. If the pounds value is the same, look to the 10p column to compare the amounts of money.
2. Use this key word in a maths sentence and explain it clearly. 'compare'
You can compare to find out what is the same and what is different. Use this word when showing your method, then check your final answer is reasonable.
3. Spot and fix this common maths mistake.
Mistake: Pupils may think that if money amount is made up of more coins it must have a higher value. Correction: Encourage pupils to group their coins and set them out in order. Focus on the highest value digit first.
More Lessons In This Unit
- Calculate change when purchasing several items Study Guide
- Convert quantities of money between pounds and pence 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
- 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.