Keystones — Cornerstone
Five GCSE retrieval questions · 21 May 2025 · mathsvault.uk/keystones
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1. Number
Calculate: 19 + (8) + (4)
Answer: 31 -
2. Algebra
Solve: x + 11 = 14
Answer: x = 3 -
3. Geometry
Opposite = 16cm, adjacent = 16cm. Calculate the angle
Answer: 45° -
4. Ratio
Simplify the ratio 6:9
Answer: 2:3 -
5. Statistics
Calculate the mean of: 6, 34, 15, 30, 32, 8, 37, 45
Answer: 25.9