Year 4 - Maths
Use and explain the most efficient strategies when adding quantities of money
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 use and explain the most efficient strategies when adding quantities of money.
Key Notes
- Informal calculation strategies such as rounding and compensating can be applied to calculating with money.
- Same sum generalisation can be applied to calculating with money.
- Column addition can be used to calculate with money but is not always the most efficient strategy.
Vocabulary To Learn
- Addend: An addend is a number added to another.
- Altogether: The word altogether is another way of saying total.
- Regroup: The process of unitising and exchanging between place values is known as regrouping.
Common Mistakes To Avoid
- When using column addition with regrouping, pupils put the regrouped digits in the wrong order.
3 Quick Questions (With Answers)
1. Solve this in steps: explain the method from this lesson and why each step matters.
Informal calculation strategies such as rounding and compensating can be applied to calculating with money. Same sum generalisation can be applied to calculating with money.
2. Use this key word in a maths sentence and explain it clearly. 'Addend'
An addend is a number added to another. Use this word when showing your method, then check your final answer is reasonable.
3. Spot and fix this common maths mistake.
Mistake: When using column addition with regrouping, pupils put the regrouped digits in the wrong order. Correction: Part of the first lesson cycle includes an example of a pupil getting it wrong, as well as the correct way to show the calculation.
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
- 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 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.