Keystones — Cornerstone

Five GCSE retrieval questions · 5 August 2024 · mathsvault.uk/keystones

1. Number

Add: ²⁄₃ + ¹⁄₈

Answer: ¹⁹⁄₂₄
2. Algebra

Solve: 8x = 64

Answer: x = 8
3. Geometry

Opposite = 12cm, adjacent = 10cm. Calculate the angle

Answer: 50.2°
4. Ratio

Find 34% of 398

Answer: 135.32
5. Statistics

Calculate the mean of: 9, 34, 7, 38, 37, 40, 12

Answer: 25.3

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