Keystones — Bedrock

Five GCSE retrieval questions · 5 April 2022 · mathsvault.uk/keystones

1. Number

Calculate: 15 + 33

Answer: 15 + 33 = 48
2. Algebra

Find the next term: 27, 30, 33, 36, ...

Answer: 39
3. Geometry

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

Answer: 60° (approximately)
4. Ratio

Calculate 25% of 30

Answer: 7.5
5. Statistics

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

Answer: ¹⁄₂

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