Keystones — Cornerstone

Five GCSE retrieval questions · 31 July 2024 · mathsvault.uk/keystones

1. Number

Add: ³⁄₅ + ¹⁄₃

Answer: ¹⁴⁄₁₅
2. Algebra

Simplify: 7x + 8x

Answer: 15x
3. Geometry

Opposite = 11cm, hypotenuse = 12.7cm. Find the angle

Answer: 60° (approximately)
4. Ratio

Find 49% of 492

Answer: 241.08
5. Statistics

Calculate the mean of: 34, 22, 31, 17, 44, 41, 12

Answer: 28.7

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