Keystones — Capstone

Five GCSE retrieval questions · 25 November 2023 · mathsvault.uk/keystones

1. Number

Calculate: 998 + 844

Answer: 1842
2. Algebra

Solve: ^x⁄₄ = 9.75

Answer: x = 39
3. Geometry

Adjacent = 25cm, hypotenuse = 41cm. Find the angle

Answer: 52.4°
4. Ratio

Calculate 22.1% of 347

Answer: 76.69
5. Statistics

The mean of 5 numbers is 37. If 4 of them are 29, 24, 22, 43, what is the missing number?

Answer: 67

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