Keystones — Capstone

Five GCSE retrieval questions · 12 December 2024 · mathsvault.uk/keystones

1. Number

Calculate: 993 + 858

Answer: 1851
2. Algebra

Solve: ^x⁄₈ = 4.75

Answer: x = 38
3. Geometry

Adjacent = 15cm, hypotenuse = 32cm. Find the angle

Answer: 62°
4. Ratio

Calculate 13.8% of 517

Answer: 71.35
5. Statistics

The mean of 5 numbers is 32. If 4 of them are 26, 15, 35, 19, what is the missing number?

Answer: 65

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