Keystones — Lintel
Five GCSE retrieval questions · 6 April 2025 · mathsvault.uk/keystones
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1. Number
0.059
Answer: 5.9 × 10^-2 -
2. Algebra
Factorise: 7x² + 5x
Answer: x(7x + 5) -
3. Geometry
Adjacent = 17cm, hypotenuse = 30cm. Find the angle
Answer: 55.5° -
4. Ratio
Calculate 42.8% of 860
Answer: 368.08 -
5. Statistics
A spinner has 3 red, 6 blue and 4 green sections. Probability of landing on red?
Answer: 3⁄13