Keystones — Bedrock

Five GCSE retrieval questions · 28 February 2022 · mathsvault.uk/keystones

1. Number

Calculate: ¹⁰⁄₁₂ + ¹⁄₁₂

Answer: ¹¹⁄₁₂
2. Algebra

Find the midpoint of (2, 5) and (11, 11)

Answer: (6.5, 8)
3. Geometry

Opposite = 11cm, hypotenuse = 22cm. Find the angle

Answer: 30° (approximately)
4. Ratio

Simplify the ratio 24:8

Answer: 3:1
5. Statistics

Find the range of: 14, 25, 15, 21, 14

Answer: 11

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