Keystones — Cornerstone
Five GCSE retrieval questions · 5 August 2026 · mathsvault.uk/keystones
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1. Number
Calculate: 11 + (10) + (-11)
Answer: 10 -
2. Algebra
What is the next term? 8, 16, 32, 64, ...
Answer: 128 -
3. Geometry
Find the area of a circle with radius 4cm
Answer: 50.27cm² -
4. Ratio
Calculate 25% of 141
Answer: 35.25 -
5. Statistics
Find the range of: 8, 13, 12, 17, 19
Answer: 11