Keystones — Cornerstone

Five GCSE retrieval questions · 6 February 2024 · mathsvault.uk/keystones

1. Number

Calculate: ⁶⁄₁₂ + ²⁄₁₂

Answer: ²⁄₃
2. Algebra

Solve: 8x - 12 = 2x + 6

Answer: x = 3
3. Geometry

Opposite = 11cm, adjacent = 14cm. Calculate the angle

Answer: 38.2°
4. Ratio

Find 30% of 488

Answer: 146.4
5. Statistics

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

Answer: ¹⁄₂

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