Keystones — Bedrock

Five GCSE retrieval questions · 28 May 2023 · mathsvault.uk/keystones

1. Number

Calculate: 16 + 15

Answer: 16 + 15 = 31
2. Algebra

Simplify: 5x + 4x

Answer: 9x
3. Geometry

Opposite = 5cm, hypotenuse = 7.cm. Find the angle

Answer: 45° (approximately)
4. Ratio

Simplify the ratio 12:14

Answer: 6:7
5. Statistics

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

Answer: ¹⁄₂

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