Keystones — Lintel

Five GCSE retrieval questions · 20 July 2024 · mathsvault.uk/keystones

1. Number

Add: ³⁄₈ + ¹⁄₅

Answer: ²³⁄₄₀
2. Algebra

Solve: ^x⁄₇ = 1.5714285714286

Answer: x = 11
3. Geometry

Adjacent = 12cm, hypotenuse = 20cm. Find the angle

Answer: 53.1°
4. Ratio

Calculate 49.4% of 337

Answer: 166.48
5. Statistics

Calculate the mean of: 38, 19, 10, 32, 43, 22, 30, 7

Answer: 25.1

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