Keystones — Lintel
Five GCSE retrieval questions · 5 November 2022 · mathsvault.uk/keystones
-
1. Number Converting to standard form
0.0054
Answer: 5.4 × 10^-3 -
2. Algebra Factorising monic quadratics
Factorise: x² + x - 56
Answer: (x + 8)(x - 7) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 20cm, angle = 46°. Find adjacent side
Answer: 13.9cm -
4. Ratio Mixed ratio problems
£135.00 is shared between A and B in the ratio 3:2. How much does A receive?
Answer: £81.00 -
5. Statistics Mean
Calculate the mean of: 20, 25, 48, 50, 5, 37, 7, 6
Answer: 24.8