Keystones — Bedrock

Five GCSE retrieval questions · 18 January 2025 · mathsvault.uk/keystones

1. Number

Calculate: ¹⁄₇ + ⁵⁄₇

Answer: ⁶⁄₇
2. Algebra

Expand: 2(x + 6)

Answer: 2x + 12
3. Geometry

Opposite = 6cm, hypotenuse = 6.9cm. Find the angle

Answer: 60° (approximately)
4. Ratio

Simplify the ratio 16:10

Answer: 8:5
5. Statistics

Find the mean of: 13, 16, 16, 11

Answer: 14

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