Keystones — Bedrock

Five GCSE retrieval questions · 11 April 2024 · mathsvault.uk/keystones

1. Number

Calculate: ¹⁄₁₂ + ⁵⁄₁₂

Answer: ¹⁄₂
2. Algebra

Simplify: 9x + 3x

Answer: 12x
3. Geometry

Opposite = 14cm, hypotenuse = 16.2cm. Find the angle

Answer: 60° (approximately)
4. Ratio

Calculate 50% of 50

Answer: 25
5. Statistics

Find the range of: 24, 28, 7, 23, 5

Answer: 23

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