Keystones — Lintel
Five GCSE retrieval questions · 25 November 2025 · mathsvault.uk/keystones
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1. Number
Calculate: 996 + 630
Answer: 1626 -
2. Algebra
Solve: 3x = 42
Answer: x = 14 -
3. Geometry
Calculate perimeter: two sides are 14cm and 14cm at right angles
Answer: 47.8cm -
4. Ratio
Calculate 38.3% of 310
Answer: 118.73 -
5. Statistics
Find the range of: -19, -9, 21, 16, 7
Answer: 40