Keystones — Lintel
Five GCSE retrieval questions · 16 August 2018 · mathsvault.uk/keystones
-
1. Number Converting to standard form
0.078
Answer: 7.8 × 10-2 -
2. Algebra Factorising monic quadratics
Factorise: x² - 9x + 18
Answer: (x - 6)(x - 3) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 15cm, angle = 31°. Find adjacent side
Answer: 12.9cm -
4. Ratio Mixed ratio problems
£294.00 is shared between A and B in the ratio 4:3. How much does A receive?
Answer: £168.00 -
5. Statistics Mean
Calculate the mean of: 25, 24, 32, 15, 13, 12, 17
Answer: 19.7