Keystones — Lintel
Five GCSE retrieval questions · 10 February 2022 · mathsvault.uk/keystones
-
1. Number Converting to standard form
0.00028
Answer: 2.8 × 10-4 -
2. Algebra Factorising monic quadratics
Factorise: x² + x - 12
Answer: (x + 4)(x - 3) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 36cm, angle = 35°. Find adjacent side
Answer: 29.5cm -
4. Ratio Mixed ratio problems
Simplify: 20:20:8
Answer: 5:5:2 -
5. Statistics Mean
Calculate the mean of: 14, 24, 22, 29, 48, 34, 48
Answer: 31.3