Keystones — Cornerstone

Five GCSE retrieval questions · 29 May 2023 · mathsvault.uk/keystones

1. Number

Simplify: 3⁵ × 3²

Answer: 3⁷
2. Algebra

Factorise: 4x² + 5x

Answer: x(4x + 5)
3. Geometry

Opposite = 12cm, adjacent = 20cm. Calculate the angle

Answer: 31°
4. Ratio

Find 83% of 137

Answer: 113.71
5. Statistics

Find the range of: 26, 32, 16, 32, 27

Answer: 16

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