Keystones — Cornerstone

Five GCSE retrieval questions · 15 January 2024 · mathsvault.uk/keystones

1. Number

30000

Answer: 3 × 10⁴
2. Algebra

For y = x³, find y when x = 5

Answer: y = 125
3. Geometry

Opposite = 10cm, adjacent = 19cm. Calculate the angle

Answer: 27.8°
4. Ratio

Simplify: 6:6:12

Answer: 1:1:2
5. Statistics

What is the probability of rolling a 2 on a fair die?

Answer: ¹⁄₆

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