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Cover of Year 6: Four Operations: Lesson 19 – Mental Calculations — Cover and first page

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Planning, teaching slides and all three worksheet levels come with the download.

Year 6Addition & Subtraction

Year 6: Four Operations: Lesson 19 – Mental Calculations

4.422 reviews

Curriculum-aligned Year 6 lesson: develop mental calculation skills with structured planning, differentiated worksheets, and reasoning tasks to enhance arithmetic fluency.

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Fully editable Word or PowerPoint file
Differentiated three ways
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About this resource

Year 6: Four Operations: Lesson 19 – Mental Calculations Enhance your Year 6 pupils' fluency and confidence in mental arithmetic with this curriculum-aligned lesson focused on mental calculations . This resource provides comprehensive teacher planning , differentiated worksheets , and reasoning tasks , designed to develop pupils' ability to perform calculations efficiently and accurately in their heads. Learners will: Apply mental strategies for addition, subtraction, multiplication, and division. Develop estimation skills to assess the reasonableness of their answers. 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 supports the development of essential mental calculation skills that underpin more complex mathematical reasoning.Read more

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What you get, 6 files

PDFPlanningThe small step plan, key questions and misconceptions.
PPTXPlanning, editableEditable, so you can change the numbers or the names.
PDFTeaching slidesReady to put on the board.
PPTXTeaching slides, editableEditable, so you can change the numbers or the names.
PDFWorksheets, all three levelsOne sheet per level, stars printed in the header.
PPTXWorksheets, editableEditable, so you can change the numbers or the names.

The standard small step pack, as her own modules ship it. We do not print page counts here, because her 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.

Her 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 620 numbered lessons

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

The step beforeYear 6: Four Operations: Lesson 18 – Mental Calculations The step afterYear 6: Four Operations: Lesson 20 – Reason from Known Facts The full Year 6 scheme →

What teachers said after they used it

All reviews →

4.422 verified reviewsWe ask once, seven days after the download, and one tap is enough.

Joanne PicklesYear 3 teacher, Crossflatts Primary, BingleyVerified download, 5 March 2026

“Printed it at eight on a Sunday and taught it on the Monday.”

No editing, no reformatting, no hunting for the answers. The three levels are on separate pages, which sounds obvious until you have used the sites where they are not.

10 teachers found this helpful

Michael FerrisMaths lead, Cheadle Heath Primary, StockportVerified download, 16 February 2026

“Matches our White Rose planning almost week for week.”

I stopped adapting things from three different sites and now start here. The odd week does not line up exactly, but the small step it covers is always somewhere in the same block.

8 teachers found this helpful

Aisha KarimSENCO, Newlands Primary Academy, LutonVerified download, 2 February 2026

“The editable file is why we renewed.”

Being able to change two questions for the child who joined us in January, without rebuilding the whole sheet, is worth the subscription on its own.

12 teachers found this helpful