Keystones — Lintel
Five GCSE retrieval questions · 14 December 2018 · mathsvault.uk/keystones
-
1. Number Converting to standard form
64000000
Answer: 6.4 × 107 -
2. Algebra Factorising monic quadratics
Factorise: x² + 2x - 48
Answer: (x + 8)(x - 6) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 28cm, angle = 37°. Find adjacent side
Answer: 22.4cm -
4. Ratio Mixed ratio problems
£168.00 is shared between A and B in the ratio 5:3. How much does A receive?
Answer: £105.00 -
5. Statistics Mean
Calculate the mean of: 19, 23, 21, 30, 13, 41, 7, 48
Answer: 25.3