Keystones — Bedrock

Five GCSE retrieval questions · 7 November 2023 · mathsvault.uk/keystones

1. Number

Calculate: ⁴⁄₉ + ¹⁄₉

Answer: ⁵⁄₉
2. Algebra

Find the next term: 14, 19, 24, 29, ...

Answer: 34
3. Geometry

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

Answer: 30° (approximately)
4. Ratio

Simplify the ratio 32:28

Answer: 8:7
5. Statistics

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

Answer: ¹⁄₂

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