Keystones — Lintel
Five GCSE retrieval questions · 3 August 2020 · mathsvault.uk/keystones
-
1. Number Converting to standard form
0.069
Answer: 6.9 × 10-2 -
2. Algebra Factorising monic quadratics
Factorise: x² - 11x + 28
Answer: (x - 7)(x - 4) -
3. Geometry SOHCAHTOA — missing length
Adjacent = 16cm, angle = 36°. Find opposite
Answer: 11.6cm -
4. Ratio Mixed ratio problems
Simplify: 8:12:12
Answer: 2:3:3 -
5. Statistics Mean
Calculate the mean of: 46, 49, 47, 49, 31, 29, 32, 28
Answer: 38.9