Keystones — Lintel
Five GCSE retrieval questions · 9 June 2025 · mathsvault.uk/keystones
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1. Number
Calculate: 996 + 546
Answer: 1542 -
2. Algebra
Factorise fully: 18x² + 15x
Answer: 3x(6x + 5) -
3. Geometry
Opposite = 14cm, adjacent = 11cm. Calculate the angle
Answer: 51.8° -
4. Ratio
Calculate 24.8% of 505
Answer: 125.24 -
5. Statistics
A spinner has 2 red, 6 blue and 4 green sections. Probability of landing on red?
Answer: 1⁄6