Keystones — Lintel

Five GCSE retrieval questions · 31 August 2025 · mathsvault.uk/keystones

1. Number

Add: ¹⁄₈ + ²⁄₄

Answer: ⁵⁄₈
2. Algebra

Solve: ^x⁄₆ = 4.3333333333333

Answer: x = 26
3. Geometry

Opposite = 19cm, adjacent = 10cm. Calculate the angle

Answer: 62.2°
4. Ratio

Find 37% of 483

Answer: 178.71
5. Statistics

Find the range of: -30, -10, 16, -22, 24

Answer: 54

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