Keystones — Lintel

Five GCSE retrieval questions · 5 August 2022 · mathsvault.uk/keystones

1. Number

Calculate: 993 + 524

Answer: 1517
2. Algebra

Solve: ^x⁄₄ = 8.5

Answer: x = 34
3. Geometry

Find the perimeter: hypotenuse = 22cm, one side = 17cm

Answer: 53cm
4. Ratio

Find 66% of 198

Answer: 130.68
5. Statistics

A spinner has 5 red, 4 blue and 3 green sections. Probability of landing on red?

Answer: ⁵⁄₁₂

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