Keystones — Lintel

Five GCSE retrieval questions · 12 April 2024 · mathsvault.uk/keystones

1. Number

What is the missing number: 32 + ? = 108

Answer: 76
2. Algebra

Solve: ^x⁄₈ = 2.625

Answer: x = 21
3. Geometry

Calculate the hypotenuse when a = 6cm and b = 7cm

Answer: 9.22cm
4. Ratio

Simplify the ratio 3m:300cm

Answer: 1:100
5. Statistics

Calculate the mean of: 6, 25, 22, 13, 50, 29

Answer: 24.2

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