Keystones — Lintel
Five GCSE retrieval questions · 9 November 2022 · mathsvault.uk/keystones
-
1. Number Converting to standard form
2600000
Answer: 2.6 × 106 -
2. Algebra Factorising monic quadratics
Factorise: x² + 4x - 5
Answer: (x + 5)(x - 1) -
3. Geometry SOHCAHTOA — missing length
Adjacent = 16cm, angle = 60°. Find opposite
Answer: 27.7cm -
4. Ratio Mixed ratio problems
Simplify the ratio 7m:700cm
Answer: 1:100 -
5. Statistics Mean
Calculate the mean of: 42, 38, 14, 10, 40, 22, 42
Answer: 29.7