Keystones — Cornerstone
Five GCSE retrieval questions · 11 June 2026 · mathsvault.uk/keystones
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1. Number
Calculate: 92 + 29
Answer: 92 + 29 = 121 -
2. Algebra
Collect like terms: 2x + 3y + 8x + 3y
Answer: 10x + 6y -
3. Geometry
Opposite = 8cm, adjacent = 10cm. Calculate the angle
Answer: 38.7° -
4. Ratio
Simplify: 10:10:8
Answer: 5:5:4 -
5. Statistics
Calculate the mean of: 42, 42, 20, 13, 11, 45, 47
Answer: 31.4