Keystones — Cornerstone
Five GCSE retrieval questions · 8 July 2026 · mathsvault.uk/keystones
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1. Number
Calculate: 54 + 60
Answer: 54 + 60 = 114 -
2. Algebra
Simplify: 5x + 9x
Answer: 14x -
3. Geometry
Opposite = 12cm, hypotenuse = 24cm. Find the angle
Answer: 30° (approximately) -
4. Ratio
Simplify the ratio 16:14
Answer: 8:7 -
5. Statistics
Calculate the mean of: 32, 11, 9, 32, 20, 34, 27, 40
Answer: 25.6