Keystones — Cornerstone

Five GCSE retrieval questions · 8 September 2022 · mathsvault.uk/keystones

1. Number

Calculate: 47 + 44

Answer: 47 + 44 = 91
2. Algebra

Solve: x + 6 = 19

Answer: x = 13
3. Geometry

Opposite = 12cm, adjacent = 10cm. Calculate the angle

Answer: 50.2°
4. Ratio

Calculate 50% of 104

Answer: 52
5. Statistics

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

Answer: ¹⁄₂

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