Bounds & Error Intervals | OCR GCSE Higher Maths | 40 Worked Examples (J560)

Forty fully worked, mark-scheme-annotated questions on Bounds and Error Intervals for OCR GCSE (9-1) Higher Mathematics (J560, content reference 4.01c). Every solution breaks the method down to one step per line, with a right-margin note on each line and OCR-style M/A/B marks folded in on the real mark-scheme lines. Progressive difficulty runs Easy to Challenging: writing error intervals for rounded and truncated values, the discrete-versus-continuous distinction, bounds of sums, differences, products and quotients, compound measures (speed, density, pressure), area and volume bounds, fit-into-space ‘show that’ problems, and choosing an appropriate degree of accuracy from the bounds. Built for OCR specifically: OCR provides no formula sheet, so the pack opens with the bounds rules a candidate must know cold, and every worked answer uses OCR’s own terminology and marking. Ideal as a revision handout, homework set, or tutor resource.