Keystones — Lintel
Five GCSE retrieval questions · 17 December 2019 · mathsvault.uk/keystones
-
1. Number Converting to standard form
46000000
Answer: 4.6 × 107 -
2. Algebra Factorising monic quadratics
Factorise: x² + 2x - 3
Answer: (x + 3)(x - 1) -
3. Geometry SOHCAHTOA — missing length
Adjacent = 15cm, angle = 58°. Find opposite
Answer: 24cm -
4. Ratio Mixed ratio problems
Simplify the ratio 4m:400cm
Answer: 1:100 -
5. Statistics Mean
Calculate the mean of: 31, 6, 43, 7, 28, 46
Answer: 26.8