Keystones — Cornerstone

Five GCSE retrieval questions · 30 November 2023 · mathsvault.uk/keystones

1. Number

800000

Answer: 8 × 10⁵
2. Algebra

Solve: x + 6 = 10

Answer: x = 4
3. Geometry

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

Answer: 60° (approximately)
4. Ratio

Calculate 25% of 96

Answer: 24
5. Statistics

Calculate the range of: 58, 48, 69, 72, 111, 45

Answer: 66

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