Keystones — Cornerstone
Five GCSE retrieval questions · 30 July 2026 · mathsvault.uk/keystones
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1. Number
Calculate: 51 + 23
Answer: 51 + 23 = 74 -
2. Algebra
Collect like terms: 5x + 8y + 6x + 3y
Answer: 11x + 11y -
3. Geometry
Find the distance between (5, 5) and (11, 11)
Answer: 8.49 -
4. Ratio
Calculate 50% of 68
Answer: 34 -
5. Statistics
Calculate the mean of: 33, 17, 11, 49, 12, 39, 9, 35
Answer: 25.6