Keystones — Lintel
Five GCSE retrieval questions · 8 April 2022 · mathsvault.uk/keystones
-
1. Number Converting to standard form
0.00047
Answer: 4.7 × 10-4 -
2. Algebra Factorising monic quadratics
Factorise: x² - 10x + 24
Answer: (x - 6)(x - 4) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 40cm, angle = 27°. Find adjacent side
Answer: 35.6cm -
4. Ratio Mixed ratio problems
Simplify the ratio 6m:600cm
Answer: 1:100 -
5. Statistics Mean
Calculate the mean of: 12, 16, 48, 49, 11, 35, 45, 23
Answer: 29.9