Keystones — Bedrock

Five GCSE retrieval questions · 14 May 2023 · mathsvault.uk/keystones

1. Number

Calculate: 94 + 92

Answer: 94 + 92 = 186
2. Algebra

Simplify: 8x + 9x

Answer: 17x
3. Geometry

Opposite = 7cm, hypotenuse = 9.9cm. Find the angle

Answer: 45° (approximately)
4. Ratio

Simplify the ratio 6:4

Answer: 3:2
5. Statistics

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

Answer: ¹⁄₂

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