Topic summary · Student revision
Number 1 summary
Number 1 revision rebuilds place value, order of operations and core arithmetic fluency.
Files: Number 1.pdf · Number 1 solutions.pdf · free public downloads · diagrams in the PDFs
Key learning points
- Follow BIDMAS/BODMAS.
- Round correctly to d.p. or significant figures.
- Estimate to catch slips.
- Keep units consistent.
Worked example 1 — Order
Evaluate .
Working
Multiply before adding.
Worked example 2 — Follow BIDMAS/BODMAS
Use this method from the Number 1 sheet: Follow BIDMAS/BODMAS.
Working
Each key learning point matches a question type on the printable worksheet.
Worked example 3 — Round correctly to d.p. or significant figures
Use this method from the Number 1 sheet: Round correctly to d.p. or significant figures.
Working
Each key learning point matches a question type on the printable worksheet.
Worked example 4 — Estimate to catch slips
Use this method from the Number 1 sheet: Estimate to catch slips.
Working
Each key learning point matches a question type on the printable worksheet.
Worked example 5 — Keep units consistent
Use this method from the Number 1 sheet: Keep units consistent.
Working
Each key learning point matches a question type on the printable worksheet.
Scaffolded Learning Sheet and answers (PDFs)
This page is a short, searchable overview for revision and search engines. Use the Scaffolded Learning Sheet first, then the Answers PDF for a full written solution. The printable PDFs remain the main classroom resource.