Keystones — Lintel
Five GCSE retrieval questions · 20 December 2018 · mathsvault.uk/keystones
-
1. Number Converting to standard form
0.076
Answer: 7.6 × 10-2 -
2. Algebra Factorising monic quadratics
Factorise: x² - 10x + 25
Answer: (x - 5)(x - 5) -
3. Geometry SOHCAHTOA — missing length
Adjacent = 17cm, angle = 38°. Find opposite
Answer: 13.3cm -
4. Ratio Mixed ratio problems
£246.00 is shared between A and B in the ratio 1:2. How much does A receive?
Answer: £82.00 -
5. Statistics Mean
Calculate the mean of: 10, 18, 8, 49, 41, 10, 21
Answer: 22.4