Keystones — Lintel

Five GCSE retrieval questions · 13 June 2023 · mathsvault.uk/keystones

1. Number

Calculate: ³⁄₅ + ⁵⁄₆ + ⁴⁄₅

Answer: ⁶⁷⁄₃₀
2. Algebra

Factorise: 5x² + 7x

Answer: x(5x + 7)
3. Geometry

Opposite = 8cm, adjacent = 15cm. Calculate the angle

Answer: 28.1°
4. Ratio

Simplify the ratio 8m:800cm

Answer: 1:100
5. Statistics

Find the range of: -16, 39, 6, 19, -26

Answer: 65

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