Keystones — Lintel
Five GCSE retrieval questions · 13 April 2018 · mathsvault.uk/keystones
-
1. Number Converting to standard form
8500000
Answer: 8.5 × 106 -
2. Algebra Factorising monic quadratics
Factorise: x² + x - 12
Answer: (x + 4)(x - 3) -
3. Geometry SOHCAHTOA — missing length
Adjacent = 13cm, angle = 59°. Find opposite
Answer: 21.6cm -
4. Ratio Mixed ratio problems
In ratio 1:3:3, what fraction is the second part?
Answer: 3⁄7 -
5. Statistics Mean
Calculate the mean of: 50, 37, 37, 8, 17, 25, 37, 15
Answer: 28.3