Keystones — Cornerstone

Five GCSE retrieval questions · 25 April 2022 · mathsvault.uk/keystones

1. Number

Calculate: ¹⁄₉ + ³⁄₉

Answer: ⁴⁄₉
2. Algebra

Solve: x + 4 = 22

Answer: x = 18
3. Geometry

Opposite = 9cm, hypotenuse = 10.4cm. Find the angle

Answer: 60° (approximately)
4. Ratio

Calculate 50% of 27

Answer: 13.5
5. Statistics

What is the probability of rolling a 5 on a fair die?

Answer: ¹⁄₆

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