Keystones — Bedrock

Five GCSE retrieval questions · 5 June 2024 · mathsvault.uk/keystones

1. Number

7000

Answer: 7 × 10³
2. Algebra

Simplify: 6x + 9x

Answer: 15x
3. Geometry

Opposite = 9cm, hypotenuse = 12.7cm. Find the angle

Answer: 45° (approximately)
4. Ratio

Simplify the ratio 10:16

Answer: 5:8
5. Statistics

Find the mean of: 12, 13, 9, 4

Answer: 9.5

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