Keystones — Lintel
Five GCSE retrieval questions · 9 July 2018 · mathsvault.uk/keystones
-
1. Number Converting to standard form
0.033
Answer: 3.3 × 10-2 -
2. Algebra Factorising monic quadratics
Factorise: x² + 2x - 3
Answer: (x + 3)(x - 1) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 25cm, angle = 27°. Find adjacent side
Answer: 22.3cm -
4. Ratio Mixed ratio problems
Simplify: 9:6:6
Answer: 3:2:2 -
5. Statistics Mean
Calculate the mean of: 6, 47, 22, 9, 24, 42
Answer: 25