Keystones — Lintel
Five GCSE retrieval questions · 5 July 2023 · mathsvault.uk/keystones
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1. Number
Calculate: 999 + 600
Answer: 1599 -
2. Algebra
Factorise fully: 25x² + 30x
Answer: 5x(5x + 6) -
3. Geometry
A circle has area 201.cm². Find its radius (dp)
Answer: 8cm -
4. Ratio
Find 80% of 392
Answer: 313.6 -
5. Statistics
A spinner has 3 red, 6 blue and 2 green sections. Probability of landing on red?
Answer: 3⁄11