Keystones — Lintel
Five GCSE retrieval questions · 10 June 2018 · mathsvault.uk/keystones
-
1. Number Converting to standard form
0.048
Answer: 4.8 × 10-2 -
2. Algebra Factorising monic quadratics
Factorise: x² - 9x + 14
Answer: (x - 7)(x - 2) -
3. Geometry SOHCAHTOA — missing length
Adjacent = 27cm, angle = 52°. Find opposite
Answer: 34.6cm -
4. Ratio Mixed ratio problems
In ratio 4:3:3, what fraction is the second part?
Answer: 3⁄10 -
5. Statistics Mean
Calculate the mean of: 39, 22, 10, 7, 35, 21, 41
Answer: 25