Keystones — Bedrock

Five GCSE retrieval questions · 21 August 2024 · mathsvault.uk/keystones

1. Number

Calculate: 42 + 17

Answer: 42 + 17 = 59
2. Algebra

Solve: x + 6 = 15

Answer: x = 9
3. Geometry

Opposite = 6cm, hypotenuse = 6.9cm. Find the angle

Answer: 60° (approximately)
4. Ratio

Simplify the ratio 15:40

Answer: 3:8
5. Statistics

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

Answer: ¹⁄₂

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