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Y4 Maths

# Efficient Subtraction Lesson

This Year 4 Efficient Subtraction lesson covers the prior learning of looking at different methods of subtraction including counting on using a number line, before moving onto the main skill of identifying the most efficient method of subtraction.

The lesson starts with a prior learning worksheet to check pupils’ understanding. If they need more practice, you can choose other resources for that step. The interactive lesson slides recap the prior learning before moving on to the main skill. Children can then practise further by completing the activities and can extend their learning by completing an engaging extension task.

National Curriculum Objectives
Mathematics Year 4: (4C2) Add and subtract numbers with up to 4 digits using the formal written methods of columnar addition and subtraction where appropriate
Mathematics Year 4: (4C3) Estimate and use inverse operations to check answers to a calculation
Mathematics Year 4: (4C4) Solve addition and subtraction two-step problems in contexts, deciding which operations and methods to use and why

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### 1 Prior Learning Subscription #### Worksheet

This Year 4 Efficient Subtraction lesson covers the prior learning of looking at different methods of subtraction including counting on using a number line, before moving onto the main skill of identifying the most efficient method of subtraction. Subscription #### Interactive Activity

This Year 3 Subtract 3 Digits from 3 Digits 1 Game checks pupils’ understanding of using different methods to subtract. Subscription #### Interactive Activity

This Subtract 3 Digits from 3 Digits Game checks pupils’ understanding of using column subtraction. Subscription #### Video Tutorial

Aaron shows pupils how to subtract two 3-digit numbers using a place value chart and column subtraction in this Subtract 3 Digits from 3 Digits Video Tutorial.

### 2 Teaching Subscription #### Lesson Slides

These lesson slides guides pupils through the prior learning of looking at different methods of subtraction including counting on using a number line, before moving onto the main skill of efficient subtraction. There are a number of questions to check pupils' understanding throughout. Subscription #### Lesson Slides

These are the same as the lesson slides on Classroom Secrets. You can assign this as an activity for pupils to access individually in school or remotely from home. Subscription #### Video Tutorial

During this Efficient Subtraction Video Tutorial, Aaron shows children how to subtract numbers more efficiently, either by adjusting both numbers by the same value or counting on using a number line to determine the difference.

### 3 Activities Subscription #### Worksheet

This worksheet includes varied fluency, reasoning and problem solving questions for pupils to practise the main skill of efficient subtraction. Subscription #### Reasoning Practice Activity

This Year 4 Efficient Subtraction Reasoning Practice game can be played to consolidate knowledge of efficient methods. Subscription #### Interactive Activity

This Year 4 Efficient Subtraction Game includes three questions to check pupils’ understanding of identifying the most efficient method of subtraction.

### 4 Extension Subscription #### Extension

This efficient subtraction extension task includes a challenge activity which can be used to further pupils' understanding of the concepts taught in the efficient subtraction lesson.