Keystones — Cornerstone
Five GCSE retrieval questions · 7 March 2026 · mathsvault.uk/keystones
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1. Number
Find the total of 263, 132, and 133
Answer: 528 -
2. Algebra
Solve: 6x = 42
Answer: x = 7 -
3. Geometry
Calculate perimeter: two sides are 7cm and 11cm at right angles
Answer: 31cm -
4. Ratio
Find 77% of 343
Answer: 264.11 -
5. Statistics
Find the range of: 27, 17, 20, 17, 19
Answer: 10