Keystones — Cornerstone

Five GCSE retrieval questions · 22 June 2025 · mathsvault.uk/keystones

1. Number

Simplify: 7⁴ × 7⁴

Answer: 7⁸
2. Algebra

Find the next term: 30, 35, 40, 45, ...

Answer: 50
3. Geometry

Opposite = 10cm, adjacent = 13cm. Calculate the angle

Answer: 37.6°
4. Ratio

Simplify: 8:10:4

Answer: 4:5:2
5. Statistics

Calculate the mean of: 23, 26, 6, 27, 16, 40, 19

Answer: 22.4

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