Y3 Maths

Add and Subtract 100s Lesson

This Year 3 Add and Subtract 100s lesson covers the prior learning of counting forwards and backwards in multiples of 100, before moving onto the main skill of adding and subtracting 100s to solve problems.

The lesson starts with a prior learning worksheet to check pupils’ understanding. 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 Objective
Mathematics Year 3: (3C1) Add and subtract numbers mentally, including a three-digit number and hundreds

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2 Teaching Support

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Lesson Slides

Lesson Slides

These lesson slides guides pupils through the prior learning of counting forwards and backwards in multiples of 100, before moving onto the main skill of add and subtract 100s. There are a number of questions to check pupils' understanding throughout.

Power Point from the old Resource Pack
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Modelling PowerPoint

Modelling PowerPoint

This powerpoint can be used to model the questions that the children will complete on the Varied Fluency and Reasoning & Problem Solving worksheets as part of this lesson.

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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.

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Video Tutorial

In this Adding and Subtracting 3-Digit Numbers and Hundreds Video Tutorial, Vanessa shows pupils how to solve calculations using Base 10 representations.

1 Prior Learning

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Worksheet

Worksheet

This Year 3 Add and Subtract 100s lesson covers the prior learning of counting forwards and backwards in multiples of 100, before moving onto the main skill of adding and subtracting 100s to solve problems.

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Interactive Activity

This Year 2 Add and Subtract 10s Game checks pupils’ understanding of adding and subtracting multiples of 10 to and from numbers up to 100.

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Interactive Activity

This Year 2 Add and Subtract 10s Matching Game checks pupils’ understanding of adding and subtracting multiples of 10 to and from 2-digit numbers.

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Interactive Activity

This Add and Subtract 10s interactive game aims to support pupils in developing their addition and subtraction fluency.

2 Varied Fluency

Varied Fluency from the old Resource Pack
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Worksheet

Worksheet

This worksheet includes varied fluency questions for pupils to practise the main skill of subtract 1 digit from 3 digits.

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Interactive Activity

Interactive Activity

This Year 3 Add and Subtract 3-Digit Numbers and Hundreds Flash Cards checks pupils’ understanding of adding and subtracting in their head.

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Interactive Activity

Interactive Activity

This Add and Subtract Multiples of 100 Game checks pupils’ understanding of adding and subtracting multiples of 100 up to 1,000.

2 Reasoning & Problem Solving

Reasoning and Problem Solving from the old Resource Pack
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Worksheet

Worksheet

This differentiated worksheet includes reasoning and problem solving questions to support the teaching of this step.

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Mixed Practice

Mixed Practice

This worksheet includes varied fluency, reasoning and problem solving questions for pupils to practise the main skill of add and subtract 100s.

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Extension

Extension

This add and subtract 100s extension task includes a challenge activity which can be used to further pupils' understanding of the concepts taught in the add and subtract 100s lesson.

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Discussion Problem

Discussion Problem

This worksheet includes two discussion problems which can be used in pairs or small groups to further pupils' understanding of the concepts taught in this lesson.

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Interactive Activity

Interactive Activity

This Year 3 Add and Subtract 100s Maths Challenge is designed to check pupils’ ability to add and subtract multiples of 100.

2 Homework

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Worksheet

Worksheet

This differentiated worksheet includes varied fluency and reasoning and problem solving questions to support the teaching of this step.

2 Additional Activities

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Consolidation Pack

Consolidation Pack

This Addition and Subtraction Consolidation Year 3 Block 2 resource is aimed at Year 3 Secure and has been designed to give children the opportunity to consolidate the skills they have learned in Autumn Block 2 – Addition and Subtraction.

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Learning Video Clip

Learning Video Clip

Ali and Mick are almost finished getting the Conservation Park back to normal. Help them finish all their jobs so that the park is as good as new.

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Home Learning Pack

Home Learning Pack

This Autumn week 6 Maths pack contains varied fluency, reasoning and problem solving worksheets