Keystones — Lintel

Five GCSE retrieval questions · 10 August 2022 · mathsvault.uk/keystones

1. Number

What is the missing number: 57 + ? = 153

Answer: 96
2. Algebra

Solve: ^x⁄₂ = 11.5

Answer: x = 23
3. Geometry

Adjacent = 26cm, hypotenuse = 37cm. Find the angle

Answer: 45.4°
4. Ratio

Find 20% of 404

Answer: 80.8
5. Statistics

Find the range of: -15, 38, 35, 16, 8

Answer: 53

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