Keystones — Lintel
Five GCSE retrieval questions · 3 May 2025 · mathsvault.uk/keystones
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1. Number
Calculate: 994 + 890
Answer: 1884 -
2. Algebra
Factorise: 5x² + 2x
Answer: x(5x + 2) -
3. Geometry
A circle has area 153.9cm². Find its radius (dp)
Answer: 7cm -
4. Ratio
Calculate 20.1% of 355
Answer: 71.36 -
5. Statistics
A spinner has 2 red, 5 blue and 4 green sections. Probability of landing on red?
Answer: 2⁄11