Keystones — Lintel

Five GCSE retrieval questions · 21 August 2023 · mathsvault.uk/keystones

1. Number

Find the total of 284, 147, and 110

Answer: 541
2. Algebra

Solve: ^x⁄₂ = 14.5

Answer: x = 29
3. Geometry

Opposite = 20cm, adjacent = 16cm. Calculate the angle

Answer: 51.3°
4. Ratio

Calculate 16.8% of 460

Answer: 77.28
5. Statistics

Find the range of: 27, -4, -1, -12, -1

Answer: 39

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