Keystones — Bedrock

Five GCSE retrieval questions · 27 October 2023 · mathsvault.uk/keystones

1. Number

Calculate: ⁶⁄₁₁ + ¹⁄₁₁

Answer: ⁷⁄₁₁
2. Algebra

Simplify: 2x + 7x

Answer: 9x
3. Geometry

Opposite = 14cm, hypotenuse = 16.2cm. Find the angle

Answer: 60° (approximately)
4. Ratio

Calculate 50% of 25

Answer: 12.5
5. Statistics

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

Answer: ¹⁄₂

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