Keystones — Cornerstone
Five GCSE retrieval questions · 2 April 2026 · mathsvault.uk/keystones
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1. Number
Calculate: 45 + 33
Answer: 45 + 33 = 78 -
2. Algebra
Collect like terms: 2x + 6y + 6x + 8y
Answer: 8x + 14y -
3. Geometry
Opposite = 13cm, adjacent = 10cm. Calculate the angle
Answer: 52.4° -
4. Ratio
Calculate 50% of 38
Answer: 19 -
5. Statistics
Calculate the mean of: 28, 34, 13, 12, 11, 49, 19, 38
Answer: 25.5