Keystones — Lintel
Five GCSE retrieval questions · 2 May 2019 · mathsvault.uk/keystones
-
1. Number Converting to standard form
0.0052
Answer: 5.2 × 10-3 -
2. Algebra Factorising monic quadratics
Factorise: x² - 8x + 16
Answer: (x - 4)(x - 4) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 26cm, angle = 53°. Find adjacent side
Answer: 15.6cm -
4. Ratio Mixed ratio problems
Simplify the ratio 2m:200cm
Answer: 1:100 -
5. Statistics Mean
The mean of 4 numbers is 36. If 3 of them are 25, 39, 47, what is the missing number?
Answer: 33