Keystones — Cornerstone
Five GCSE retrieval questions · 14 August 2025 · mathsvault.uk/keystones
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1. Number
Calculate: 32 + 56
Answer: 32 + 56 = 88 -
2. Algebra
Factorise: 3x² + 5x
Answer: x(3x + 5) -
3. Geometry
Opposite = 5cm, hypotenuse = 10cm. Find the angle
Answer: 30° (approximately) -
4. Ratio
Calculate 10% of 56
Answer: 5.6 -
5. Statistics
Find the mean of: 11, 5, 2, 8
Answer: 6.5