Y3 Maths

3-Digit Numbers and Ones Lesson

This Year 3 3-Digit Numbers and Ones lesson covers the prior learning of place value of numbers with up to 3 digits, before moving onto the main skill of adding and subtracting one-digit numbers to and from three-digit numbers.

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 Objective
Mathematics Year 3: (3C1) Add and subtract numbers mentally, including three-digit number and ones

Get the most from lessons!

Classroom Secrets logo

Resources for teachers

Sign up for £4.83
Classroom Secrets Kids logo

Interactive activities for children

Start free trial

1 Prior Learning

Classroom Secrets logo

Subscription

Worksheet

Worksheet

This worksheet recaps numbers with up to 3 digits, before moving onto the main skill of adding and subtracting one-digit numbers to and from three-digit numbers.

Classroom Secrets Kids logo

Subscription

csk_pre_learning_title

Video Tutorial

In this Add 2 Digit and 1 Digit Numbers Video Tutorial, Katie shows how to add a 1-digit number to a 2-digit number using visual representations and objects to help.

Classroom Secrets Kids logo

Subscription

csk_pre_learning_title

Interactive Activity

This Year 2 Add 2-Digit and 1-Digit Numbers Game consists of five questions to support pupils' skills of counting on, bridging ten and exchanging.

Classroom Secrets Kids logo

Subscription

csk_pre_learning_title

Video Tutorial

This Subtract 1-Digit Numbers from 2-Digit Numbers Video Tutorial explains how to subtract numbers. Katie uses lollipop sticks to represent tens and ones.

2 Teaching

Classroom Secrets logo

Subscription

Lesson Slides

Lesson Slides

These lesson slides guides pupils through the prior learning of place value of 1s, 10s and 100s, before moving onto the main skill of 3-digit numbers and ones. There are a number of questions to check pupils' understanding throughout.

Classroom Secrets Kids logo

Subscription

csk_teaching_title

Video Tutorial

In this Add and Subtract 3-Digit Numbers and Ones Video Tutorial, Vanessa shows pupils how to use place value counters and a number line to add and subtract.

Classroom Secrets Kids logo

Subscription

csk_teaching_title

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.

3 Activities

Classroom Secrets logo

Subscription

Worksheet

Worksheet

This worksheet includes varied fluency, reasoning and problem solving questions for pupils to practise the main skill of 3-digit numbers and ones.

Classroom Secrets Kids logo

Subscription

csk_activities_title

Interactive Activity

This Year 3 Add 3-Digit and 1-Digit Numbers Game checks pupils’ understanding of adding and subtracting 3-digit numbers and ones.

Classroom Secrets Kids logo

Subscription

csk_activities_title

Interactive Activity

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

4 Extension

Classroom Secrets logo

Subscription

Extension

Extension

This 3-digit numbers and ones extension task includes a challenge activity which can be used to further pupils' understanding of the concepts taught in the 3-digit numbers and ones lesson.

Classroom Secrets Kids logo

Subscription

csk_extensions_title

Interactive Activity

This Year 3 Add and Subtract 3-Digit Numbers and Ones Maths Challenge checks pupils' understanding of adding and subtracting mentally.