Keystones — Cornerstone
Five GCSE retrieval questions · 16 October 2025 · mathsvault.uk/keystones
-
1. Number
Find the total of 261, 262, and 51
Answer: 574 -
2. Algebra
Factorise: 2x² + 6x
Answer: 2x(x + 3) -
3. Geometry
Calculate the area of a circle with diameter 14cm
Answer: 153.94cm² -
4. Ratio
Simplify the ratio 12:16
Answer: 3:4 -
5. Statistics
Find the range of: 23, 23, 20, 14, 13
Answer: 10