All topic explainers
—·Mathematics · GCSE
Every Percentage Is a Multiplier
Why a 10% rise followed by a 10% fall leaves you worse off — and how to get back to a price before the sale. Percentages as multipliers; ratio and proportion with a bar model; standard form, bounds, HCF and LCM, and surds; the formulae the DfE says you will not be given; a worked reverse percentage. Ten terms to define, a model answer on two successive reductions, and the misconceptions that cost marks. No photographs: every figure is drawn for the sheet.
Ready for the classroom
Get the clean copy
You have seen all 1 sheets — nothing is held back. What you buy is the same set without the watermark, at full print resolution, ready to run off for every class in the department.
- Every sheet with no watermark, at print resolution
- 1 print-and-use template
- Referenced to the DfE GCSE mathematics subject content (DFE-00233-2013) and its Appendix of formulae. No photographs: every figure is drawn in code for the sheet, so nothing on it is licensed from anybody
- Instant PDF download, yours to keep and reproduce across the school that buys it — not for other schools