Keystones — Lintel

Five GCSE retrieval questions · 29 March 2025 · mathsvault.uk/keystones

1. Number

Calculate: 995 + 622

Answer: 1617
2. Algebra

Solve: ^x⁄₃ = 7.3333333333333

Answer: x = 22
3. Geometry

A circle has area 380.cm². Find its radius (dp)

Answer: 11cm
4. Ratio

Calculate 39.5% of 314

Answer: 124.03
5. Statistics

A spinner has 4 red, 3 blue and 3 green sections. Probability of landing on red?

Answer: ²⁄₅

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