Keystones — Lintel
Five GCSE retrieval questions · 17 October 2019 · mathsvault.uk/keystones
-
1. Number Converting to standard form
790000
Answer: 7.9 × 105 -
2. Algebra Factorising monic quadratics
Factorise: x² - 8x + 15
Answer: (x - 3)(x - 5) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 20cm, angle = 25°. Find adjacent side
Answer: 18.cm -
4. Ratio Mixed ratio problems
Simplify the ratio 6m:600cm
Answer: 1:100 -
5. Statistics Mean
Calculate the mean of: 46, 29, 38, 30, 36, 34
Answer: 35.5