Keystones — Cornerstone

Five GCSE retrieval questions · 15 June 2026 · mathsvault.uk/keystones

1. Number

440000

Answer: 4.4 × 10⁵
2. Algebra

Collect like terms: 4x + 4y + 6x + 8y

Answer: 10x + 12y
3. Geometry

Opposite = 7cm, hypotenuse = 14cm. Find the angle

Answer: 30° (approximately)
4. Ratio

Simplify the ratio 8:10

Answer: 4:5
5. Statistics

Find the mean of: 2, 14, 9, 11, 20

Answer: 11.2

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