Keystones — Cornerstone
Five GCSE retrieval questions · 12 March 2026 · mathsvault.uk/keystones
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1. Number
Calculate: 63 + 96
Answer: 63 + 96 = 159 -
2. Algebra
Factorise: 8x² + 7x
Answer: x(8x + 7) -
3. Geometry
Calculate perimeter: two sides are 15cm and 13cm at right angles
Answer: 47.8cm -
4. Ratio
Find 73% of 361
Answer: 263.53 -
5. Statistics
Find the range of: 31, 19, 35, 12, 19
Answer: 23