Keystones — Capstone
Five GCSE retrieval questions · 18 July 2025 · mathsvault.uk/keystones
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1. Number
0.0042
Answer: 4.2 × 10^-3 -
2. Algebra
Simplify: 6x - 4x + 10y - 8y
Answer: 2x + 2y -
3. Geometry
Adjacent = 18cm, hypotenuse = 29cm. Find the angle
Answer: 51.6° -
4. Ratio
Simplify the ratio 3m:300cm
Answer: 1:100 -
5. Statistics
A spinner has 5 red, 5 blue and 4 green sections. Probability of landing on red?
Answer: 5⁄14