Keystones — Cornerstone
Five GCSE retrieval questions · 3 July 2025 · mathsvault.uk/keystones
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1. Number
Calculate: 31 + 92
Answer: 31 + 92 = 123 -
2. Algebra
Solve: x + 5 = 15
Answer: x = 10 -
3. Geometry
Find the distance between (1, 4) and (6, 12)
Answer: 9.43 -
4. Ratio
Calculate 50% of 110
Answer: 55 -
5. Statistics
Calculate the mean of: 43, 37, 18, 26, 50, 27, 39, 30
Answer: 33.8