Keystones — Lintel

Five GCSE retrieval questions · 28 December 2024 · mathsvault.uk/keystones

1. Number

Calculate: 678 + 609

Answer: 678 + 609 = 1287
2. Algebra

Solve: ^x⁄₃ = 5

Answer: x = 15
3. Geometry

Adjacent = 14cm, hypotenuse = 19cm. Find the angle

Answer: 42.5°
4. Ratio

Find 19% of 408

Answer: 77.52
5. Statistics

Calculate the mean of: 39, 15, 43, 11, 41, 32, 20

Answer: 28.7

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