Keystones — Bedrock
Five GCSE retrieval questions · 7 September 2025 · mathsvault.uk/keystones
-
1. Number
Calculate: 23 + 23
Answer: 23 + 23 = 46 -
2. Algebra
Find the next term: 5, 11, 17, 23, ...
Answer: 29 -
3. Geometry
Find the area of a circle with radius 7cm
Answer: 153.94cm² -
4. Ratio
Simplify the ratio 15:40
Answer: 3:8 -
5. Statistics
Find the mean of: 7, 17, 16, 18, 17
Answer: 15