Keystones — Lintel
Five GCSE retrieval questions · 13 May 2020 · mathsvault.uk/keystones
-
1. Number Converting to standard form
0.075
Answer: 7.5 × 10-2 -
2. Algebra Factorising monic quadratics
Factorise: x² - 8x + 15
Answer: (x - 3)(x - 5) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 34cm, angle = 65°. Find adjacent side
Answer: 14.4cm -
4. Ratio Mixed ratio problems
£120.00 is shared between A and B in the ratio 2:1. How much does A receive?
Answer: £80.00 -
5. Statistics Mean
Calculate the mean of: 7, 40, 28, 37, 45, 26, 15, 35
Answer: 29.1