Keystones — Cornerstone
Five GCSE retrieval questions · 30 August 2025 · mathsvault.uk/keystones
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1. Number
Calculate: 40 + 75
Answer: 40 + 75 = 115 -
2. Algebra
Solve: 8x = 112
Answer: x = 14 -
3. Geometry
Calculate the hypotenuse when a = 6cm and b = 11cm
Answer: 12.53cm -
4. Ratio
Simplify: 10:4:6
Answer: 5:2:3 -
5. Statistics
Find the range of: 12, 12, 33, 35, 35
Answer: 23