Keystones — Lintel

Five GCSE retrieval questions · 25 August 2022 · mathsvault.uk/keystones

1. Number

Find the total of 191, 206, and 70

Answer: 467
2. Algebra

Solve: ^x⁄₈ = 1.5

Answer: x = 12
3. Geometry

Find c if a = 16cm and b = 20cm in a right triangle

Answer: 25.6cm
4. Ratio

Simplify: 12:8:8

Answer: 3:2:2
5. Statistics

Calculate the mean of: 19, 41, 32, 21, 35, 40, 30

Answer: 31.1

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