Keystones — Bedrock

Five GCSE retrieval questions · 12 May 2026 · mathsvault.uk/keystones

1. Number

Calculate: ¹⁄₁₂ + ¹⁄₁₂

Answer: ¹⁄₆
2. Algebra

Simplify: 5x + 5x

Answer: 10x
3. Geometry

Opposite = 8cm, hypotenuse = 16cm. Find the angle

Answer: 30° (approximately)
4. Ratio

Calculate 10% of 98

Answer: 9.8
5. Statistics

Find the mean of: 2, 9, 19, 9

Answer: 9.75

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