Keystones — Cornerstone
Five GCSE retrieval questions · 20 May 2025 · mathsvault.uk/keystones
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1. Number
Calculate: 79 + 35
Answer: 79 + 35 = 114 -
2. Algebra
Factorise: 7x² + 3x
Answer: x(7x + 3) -
3. Geometry
Opposite = 8cm, hypotenuse = 16cm. Find the angle
Answer: 30° (approximately) -
4. Ratio
Calculate 25% of 53
Answer: 13.25 -
5. Statistics
Find the mean of: 4, 8, 3, 3
Answer: 4.5