Keystones — Lintel
Five GCSE retrieval questions · 13 September 2020 · mathsvault.uk/keystones
-
1. Number Converting to standard form
4400000
Answer: 4.4 × 106 -
2. Algebra Factorising monic quadratics
Factorise: x² - 4x + 4
Answer: (x - 2)(x - 2) -
3. Geometry SOHCAHTOA — missing length
Adjacent = 20cm, angle = 42°. Find opposite
Answer: 18cm -
4. Ratio Mixed ratio problems
Simplify: 4:12:8
Answer: 1:3:2 -
5. Statistics Mean
Calculate the mean of: 9, 6, 37, 22, 26, 33, 31, 22
Answer: 23.3