Keystones — Cornerstone
Five GCSE retrieval questions · 23 June 2025 · mathsvault.uk/keystones
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1. Number
Calculate: 14²
Answer: 14² = 196 -
2. Algebra
For y = x³ + 2, calculate y when x = 4
Answer: y = 66 -
3. Geometry
Find the area of a circle with radius 8cm
Answer: 201.06cm² -
4. Ratio
Find 81% of 354
Answer: 286.74 -
5. Statistics
Find the mean of: 7, 15, 3, 16, 8
Answer: 9.8