Keystones — Lintel

Five GCSE retrieval questions · 23 November 2023 · mathsvault.uk/keystones

1. Number

Calculate: ²⁄₅ + ¹⁄₃ + ²⁄₃

Answer: ⁷⁄₅
2. Algebra

Factorise: 2x² + 8x

Answer: 2x(x + 4)
3. Geometry

Adjacent = 13cm, hypotenuse = 33cm. Find the angle

Answer: 66.8°
4. Ratio

Simplify: 12:16:8

Answer: 3:4:2
5. Statistics

A spinner has 3 red, 6 blue and 6 green sections. Probability of landing on red?

Answer: ¹⁄₅

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