Keystones — Lintel
Five GCSE retrieval questions · 5 February 2022 · mathsvault.uk/keystones
-
1. Number Converting to standard form
39000000
Answer: 3.9 × 107 -
2. Algebra Factorising monic quadratics
Factorise: x² - 8x + 12
Answer: (x - 6)(x - 2) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 38cm, angle = 53°. Find adjacent side
Answer: 22.9cm -
4. Ratio Mixed ratio problems
Express the first part of 5:4 as a fraction in simplest form
Answer: 5⁄9 -
5. Statistics Mean
Calculate the mean of: 40, 50, 24, 33, 37, 29
Answer: 35.5