Keystones — Bedrock

Five GCSE retrieval questions · 16 December 2024 · mathsvault.uk/keystones

1. Number

Calculate: 30 + 53

Answer: 30 + 53 = 83
2. Algebra

Factorise: 18x + 9

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

Opposite = 5cm, hypotenuse = 5.8cm. Find the angle

Answer: 60° (approximately)
4. Ratio

Simplify the ratio 9:12

Answer: 3:4
5. Statistics

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

Answer: ¹⁄₂

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