Keystones — Bedrock

Five GCSE retrieval questions · 22 January 2024 · mathsvault.uk/keystones

1. Number

400000

Answer: 4 × 10⁵
2. Algebra

Find the midpoint of (7, 6) and (15, 17)

Answer: (11, 11.5)
3. Geometry

Opposite = 7cm, hypotenuse = 8.cm. Find the angle

Answer: 60° (approximately)
4. Ratio

Simplify the ratio 8:28

Answer: 2:7
5. Statistics

Find the mean of: 20, 12, 2, 11

Answer: 11.25

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