Keystones — Cornerstone
Five GCSE retrieval questions · 18 February 2026 · mathsvault.uk/keystones
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1. Number
Calculate: 87 + 50
Answer: 87 + 50 = 137 -
2. Algebra
Collect like terms: 6x + 7y + 6x + 3y
Answer: 12x + 10y -
3. Geometry
Opposite = 11cm, adjacent = 9cm. Calculate the angle
Answer: 50.7° -
4. Ratio
Simplify: 12:8:12
Answer: 3:2:3 -
5. Statistics
Find the range of: 18, 17, 28, 26, 19
Answer: 11