Keystones — Lintel
Five GCSE retrieval questions · 23 February 2020 · mathsvault.uk/keystones
-
1. Number Converting to standard form
86000000
Answer: 8.6 × 107 -
2. Algebra Factorising monic quadratics
Factorise: x² - 10x + 24
Answer: (x - 6)(x - 4) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 28cm, angle = 57°. Find adjacent side
Answer: 15.2cm -
4. Ratio Mixed ratio problems
Simplify: 9:6:6
Answer: 3:2:2 -
5. Statistics Mean
Calculate the mean of: 8, 14, 12, 10, 43, 41, 46, 44
Answer: 27.3