Keystones — Bedrock

Five GCSE retrieval questions · 24 April 2024 · mathsvault.uk/keystones

1. Number

40000

Answer: 4 × 10⁴
2. Algebra

Factorise: 18x + 9

Answer: 3(6x + 3)
3. Geometry

Find the area of a circle with radius 4cm

Answer: 50.27cm²
4. Ratio

Simplify the ratio 8:12

Answer: 2:3
5. Statistics

What is the probability of getting heads when flipping a fair coin?

Answer: ¹⁄₂

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