Keystones — Bedrock

Five GCSE retrieval questions · 23 January 2025 · mathsvault.uk/keystones

1. Number

Calculate: ²⁄₇ + ⁴⁄₇

Answer: ⁶⁄₇
2. Algebra

Factorise: 10x + 16

Answer: 2(5x + 8)
3. Geometry

Opposite = 12cm, hypotenuse = 17cm. Find the angle

Answer: 45° (approximately)
4. Ratio

Calculate 50% of 131

Answer: 65.5
5. Statistics

Find the mean of: 5, 20, 11, 18

Answer: 13.5

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