Keystones — Lintel
Five GCSE retrieval questions · 23 March 2019 · mathsvault.uk/keystones
-
1. Number Converting to standard form
87000
Answer: 8.7 × 104 -
2. Algebra Factorising monic quadratics
Factorise: x² + x - 6
Answer: (x + 3)(x - 2) -
3. Geometry SOHCAHTOA — missing length
Adjacent = 21cm, angle = 46°. Find opposite
Answer: 21.7cm -
4. Ratio Mixed ratio problems
Divide 128 in the ratio 1:2:1
Answer: 32, 64 and 32 -
5. Statistics Mean
Calculate the mean of: 44, 40, 39, 17, 22, 29, 13
Answer: 29.1