Keystones — Bedrock

Five GCSE retrieval questions · 27 October 2022 · mathsvault.uk/keystones

1. Number

Simplify: 4⁴ × 4⁴

Answer: 4⁸
2. Algebra

Find the next term: 19, 27, 35, 43, ...

Answer: 51
3. Geometry

Opposite = 9cm, hypotenuse = 18cm. Find the angle

Answer: 30° (approximately)
4. Ratio

Calculate 25% of 85

Answer: 21.25
5. Statistics

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

Answer: ¹⁄₂

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