Keystones — Cornerstone
Five GCSE retrieval questions · 2 February 2026 · mathsvault.uk/keystones
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1. Number
What is 2 × 3 × 5?
Answer: 30 -
2. Algebra
Solve: 9x = 36
Answer: x = 4 -
3. Geometry
Calculate the hypotenuse when a = 9cm and b = 4cm
Answer: 9.85cm -
4. Ratio
Find 78% of 99
Answer: 77.22 -
5. Statistics
Find the range of: 38, 37, 11, 12, 26
Answer: 27