Keystones — Lintel
Five GCSE retrieval questions · 4 December 2019 · mathsvault.uk/keystones
-
1. Number Converting to standard form
8200000
Answer: 8.2 × 106 -
2. Algebra Factorising monic quadratics
Factorise: x² - 7x + 10
Answer: (x - 2)(x - 5) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 17cm, angle = 52°. Find adjacent side
Answer: 10.5cm -
4. Ratio Mixed ratio problems
Divide 114 in the ratio 1:3:2
Answer: 19, 57 and 38 -
5. Statistics Mean
Calculate the mean of: 35, 30, 10, 42, 13, 50, 49
Answer: 32.7