Keystones — Cornerstone

Five GCSE retrieval questions · 26 April 2026 · mathsvault.uk/keystones

1. Number

90000

Answer: 9 × 10⁴
2. Algebra

Collect like terms: 2x + 4y + 3x + 5y

Answer: 5x + 9y
3. Geometry

Opposite = 6cm, hypotenuse = 12cm. Find the angle

Answer: 30° (approximately)
4. Ratio

Simplify: 24:16:16

Answer: 3:2:2
5. Statistics

Calculate the range of: 75, 77, 42, 50, 96, 109

Answer: 67

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