Keystones — Cornerstone

Five GCSE retrieval questions · 2 June 2022 · mathsvault.uk/keystones

1. Number

Add: ³⁄₈ + ¹⁄₃

Answer: ¹⁷⁄₂₄
2. Algebra

For y = x³ + 12, calculate y when x = 4

Answer: y = 76
3. Geometry

Opposite = 14cm, adjacent = 17cm. Calculate the angle

Answer: 39.5°
4. Ratio

Simplify: 6:12:18

Answer: 1:2:3
5. Statistics

What is the probability of rolling a 6 on a fair die?

Answer: ¹⁄₆

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