Skip to content

Year 6Addition & Subtraction

Year 6: Four Operations: Lesson 20 – Reason from Known Facts

Curriculum-aligned Year 6 lesson: develop reasoning skills by applying known facts to solve complex problems, with structured planning, differentiated worksheets, and reasoning tasks.

CoverCover and first page

Preview only. The download is 4 files, listed in full below.

Every page is shown before you download. The files themselves come with membership, or sign in if you already have one.

Included with membership

Unlock with membership

Already a member? Sign in and it downloads from this page.

Keep it for later and group it with the rest of the block. No account needed to start.

  • Print it as it is, or as many as you need
  • Differentiated three ways
  • Instant download, no watermark

About this resource

Year 6: Four Operations: Lesson 20 – Reason from Known Facts Support your Year 6 pupils in developing flexible and efficient calculation strategies with this curriculum-aligned lesson focused on reasoning from known facts. This resource provides comprehensive teacher planning, differentiated worksheets, and reasoning tasks, designed to help pupils make connections between known facts and apply them to solve more complex problems. Learners will: Use known facts (e.g., multiplication tables, number bonds) to derive answers to unfamiliar problems. Develop strategies for mental calculation and estimation. Engage in reasoning tasks that require explanation of their thought processes. Benefit from differentiated worksheets tailored to varying levels of ability, ensuring all pupils are appropriately challenged. Ideal for guided teaching, independent practice, or consolidation, this lesson encourages pupils to build on their existing knowledge and apply it to new and varied contexts.Read more

Year 6: Four Operations: Lesson 20 – Reason from Known Facts Support your Year 6 pupils in developing flexible and efficient calculation strategies with this curriculum-aligned lesson focused on reasoning from known facts. This resource provides comprehensive teacher planning, differentiated worksheets, and reasoning tasks, designed to help pupils make connections between known facts and apply them to solve more complex problems. Learners will: Use known facts (e.g., multiplication tables, number bonds) to derive answers to unfamiliar problems. Develop strategies for mental calculation and estimation. Engage in reasoning tasks that require explanation of their thought processes. Benefit from differentiated worksheets tailored to varying levels of ability, ensuring all pupils are appropriately challenged. Ideal for guided teaching, independent practice, or consolidation, this lesson encourages pupils to build on their existing knowledge and apply it to new and varied contexts.

What you get, 4 files

  • PDFPlanning
  • PDFTeaching slides
  • PDFWorksheets
  • ZIPThe whole pack

This pack is listed as editable, so the editable copy comes with it. We do not print page counts here, because our catalogue does not publish them and a guessed number is worse than none.

★★★ Differentiated three ways
  • Working towardsScaffolded, with the model or the bar already drawn.
  • Working withinThe expected standard for the year group.
  • Greater depthReasoning and explaining, not just more of the same.

Our own system, with the star count repeated in every worksheet header so a child can be handed the right sheet without a word.

The rest of this block

Addition & Subtraction, Year 610 numbered lessons

  1. Lesson 16Year 6: Four Operations: Lesson 16 – Order of Operations
  2. Lesson 17Year 6: Four Operations: Lesson 17 – Order of Operations
  3. Lesson 18Year 6: Four Operations: Lesson 18 – Mental Calculations
  4. Lesson 19Year 6: Four Operations: Lesson 19 – Mental Calculations
  5. Lesson 20 · you are hereYear 6: Four Operations: Lesson 20 – Reason from Known Facts

More addition & subtraction for Year 6

Y6

Multiplication & Division

Spotlight Yr6 Division Using Factors: Same Answer

masterthecurriculum.co.uk

3 levels
Included with membership
Y6

Addition & Subtraction

Spotlight Y6 Find the Missing Number in Equivalent Calculations

masterthecurriculum.co.uk

3 levels
Included with membership
Y6

Multiplication & Division

Spotlight Y6 Long Division with Decimals

masterthecurriculum.co.uk

3 levels
Included with membership
Y6

Multiplication & Division

Spotlight Y6 Long Division Word Problems: How Many Can Be Made?

masterthecurriculum.co.uk

3 levels
Included with membership
Y6

Multiplication & Division

Spotlight Y6 Long Division Calculations with the Same Answer

masterthecurriculum.co.uk

3 levels
Included with membership
Y6

Multiplication & Division

Spotlight Y6 Find the Missing Length Using Area and Long Division

masterthecurriculum.co.uk

3 levels
Included with membership
Y6

Multiplication & Division

Spotlight Y6 Write Multiples for Long Division

masterthecurriculum.co.uk

3 levels
Included with membership
Y6

Multiplication & Division

Spotlight Y6 Long Division Using Multiples

masterthecurriculum.co.uk

3 levels
Included with membership

Got a question about this resource?

Leave a message and we’ll get back to you.

Editable resourcesOpens in PowerPoint so you can edit to suit your classWhite Rose supportingFollows the small steps you already plan fromKey eventsSeasonal and cultural resources for the moments in the school yearReasoning Maths HubReasoning and problem solving, by year group

Sign up to keep updated on new resources

An email when there is something new for the year group you actually teach. Unsubscribe in a click.

Year group you teach

We keep your address, and the year group you teach, so we can tell you when there is something new for it. Here is how we look after it: privacy policy.