Keystones — Cornerstone

Five GCSE retrieval questions · 24 July 2024 · mathsvault.uk/keystones

1. Number

70000

Answer: 7 × 10⁴
2. Algebra

Solve: x + 9 = 22

Answer: x = 13
3. Geometry

Opposite = 6cm, hypotenuse = 12cm. Find the angle

Answer: 30° (approximately)
4. Ratio

Simplify: 4:4:12

Answer: 1:1:3
5. Statistics

Calculate the range of: 55, 22, 96, 92, 96, 53

Answer: 74

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