Keystones — Lintel
Five GCSE retrieval questions · 22 July 2021 · mathsvault.uk/keystones
-
1. Number Converting to standard form
0.023
Answer: 2.3 × 10-2 -
2. Algebra Factorising monic quadratics
Factorise: x² + x - 6
Answer: (x + 3)(x - 2) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 27cm, angle = 51°. Find adjacent side
Answer: 17cm -
4. Ratio Mixed ratio problems
Divide 224 in the ratio 3:3:2
Answer: 84, 84 and 56 -
5. Statistics Mean
Calculate the mean of: 19, 47, 28, 28, 6, 30
Answer: 26.3