Keystones — Lintel
Five GCSE retrieval questions · 30 July 2022 · mathsvault.uk/keystones
-
1. Number Converting to standard form
0.089
Answer: 8.9 × 10-2 -
2. Algebra Factorising monic quadratics
Factorise: x² + x - 2
Answer: (x + 2)(x - 1) -
3. Geometry SOHCAHTOA — missing length
Adjacent = 20cm, angle = 38°. Find opposite
Answer: 15.6cm -
4. Ratio Mixed ratio problems
Simplify: 24:16:20
Answer: 6:4:5 -
5. Statistics Mean
Calculate the mean of: 48, 13, 37, 33, 40, 30, 22, 48
Answer: 33.9