Keystones — Bedrock

Five GCSE retrieval questions · 29 September 2022 · mathsvault.uk/keystones

1. Number

Calculate: 47 + 97

Answer: 47 + 97 = 144
2. Algebra

Simplify: 2x + 5x

Answer: 7x
3. Geometry

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

Answer: 60° (approximately)
4. Ratio

Simplify the ratio 10:15

Answer: 2:3
5. Statistics

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

Answer: ¹⁄₂

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