Keystones Lintel — 30 December 2021

Keystones — Lintel

Five GCSE retrieval questions · 30 December 2021 · mathsvault.uk/keystones

1. Number

Calculate: 999 + 847

Answer: 1846
2. Algebra

Solve: ^x⁄₇ = 5.7142857142857

Answer: x = 40
3. Geometry

Opposite = 8cm, adjacent = 17cm. Calculate the angle

Answer: 25.2°
4. Ratio

Calculate 19.5% of 390

Answer: 76.05
5. Statistics

Calculate the mean of: 9, 39, 8, 48, 24, 6, 24, 29

Answer: 23.4

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