Keystones — Lintel

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

1. Number

Simplify: x⁸ × x³

Answer: x¹¹
2. Algebra

Solve: 5x = 60

Answer: x = 12
3. Geometry

Calculate the hypotenuse when a = 9cm and b = 7cm

Answer: 11.4cm
4. Ratio

Simplify: 6:10:4

Answer: 3:5:2
5. Statistics

Find the range of: 11, 0, 15, 30, -16

Answer: 46

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