Keystones — Bedrock

Five GCSE retrieval questions · 30 August 2023 · mathsvault.uk/keystones

1. Number

Calculate: ⁵⁄₇ + ¹⁄₇

Answer: ⁶⁄₇
2. Algebra

Solve: x + 11 = 23

Answer: x = 12
3. Geometry

Opposite = 10cm, hypotenuse = 11.5cm. Find the angle

Answer: 60° (approximately)
4. Ratio

Simplify the ratio 20:32

Answer: 5:8
5. Statistics

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

Answer: ¹⁄₂

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