Keystones — Cornerstone
Five GCSE retrieval questions · 22 June 2022 · mathsvault.uk/keystones
-
1. Number
Calculate: 55 + 53
Answer: 55 + 53 = 108 -
2. Algebra
Factorise: 2x² + 4x
Answer: 2x(x + 2) -
3. Geometry
Calculate the area of a circle with diameter 19cm
Answer: 283.53cm² -
4. Ratio
Simplify: 24:20:24
Answer: 6:5:6 -
5. Statistics
Calculate the range of: 38, 84, 72, 67, 45, 62
Answer: 46