Estimation and Approximation | OCR GCSE Higher Maths | 40 Worked Examples (J560)

40 exam-style questions on Estimation and Approximation for OCR GCSE (9-1) Higher Mathematics (J560), with fully worked, mark-scheme-annotated solutions. Progressive difficulty from rounding and 1 significant figure estimation, through error intervals (rounding vs truncation) and upper/lower bounds of calculations, to synoptic bounds problems on speed, area, volume, density and Pythagoras. Every solution breaks the method into one step per line with a plain-English note on each line, and folds in OCR’s own M/A/B/SC marks only on the real mark-scheme lines. Built specifically for OCR: it uses OCR’s mark codes (not Edexcel P-marks), matches OCR question phrasing, and reflects the J560 quirk that there is no formula sheet, so SUVAT and Pythagoras are recalled from memory inside the questions. Ideal for classwork, homework, revision and 1-1 tuition. 25 pages.