Keystones — Lintel
Five GCSE retrieval questions · 6 August 2020 · mathsvault.uk/keystones
-
1. Number Converting to standard form
0.0032
Answer: 3.2 × 10-3 -
2. Algebra Factorising monic quadratics
Factorise: x² + x - 6
Answer: (x + 3)(x - 2) -
3. Geometry SOHCAHTOA — missing length
Adjacent = 26cm, angle = 44°. Find opposite
Answer: 25.cm -
4. Ratio Mixed ratio problems
In ratio 2:1:2, what fraction is the second part?
Answer: 1⁄5 -
5. Statistics Mean
Calculate the mean of: 45, 8, 49, 33, 13, 19, 7, 49
Answer: 27.9