Keystones — Cornerstone
Five GCSE retrieval questions · 12 January 2026 · mathsvault.uk/keystones
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1. Number
Calculate: 65 + 50
Answer: 65 + 50 = 115 -
2. Algebra
Solve: x + 4 = 22
Answer: x = 18 -
3. Geometry
Opposite = 5cm, hypotenuse = 5.8cm. Find the angle
Answer: 60° (approximately) -
4. Ratio
Simplify: 12:6:4
Answer: 6:3:2 -
5. Statistics
Find the range of: 6, 23, 16, 7, 6
Answer: 17