Keystones — Bedrock

Five GCSE retrieval questions · 1 January 2023 · mathsvault.uk/keystones

1. Number

Calculate: 62 + 37

Answer: 62 + 37 = 99
2. Algebra

Solve: x + 4 = 13

Answer: x = 9
3. Geometry

Opposite = 15cm, hypotenuse = 17.3cm. Find the angle

Answer: 60° (approximately)
4. Ratio

Simplify the ratio 24:8

Answer: 3:1
5. Statistics

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

Answer: ¹⁄₂

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