Keystones — Bedrock

Five GCSE retrieval questions · 24 February 2024 · mathsvault.uk/keystones

1. Number

Simplify: 2⁴ × 2⁵

Answer: 2⁹
2. Algebra

Factorise: 14x + 16

Answer: 2(7x + 8)
3. Geometry

Opposite = 13cm, hypotenuse = 26cm. Find the angle

Answer: 30° (approximately)
4. Ratio

Simplify the ratio 21:12

Answer: 7:4
5. Statistics

Find the mean of: 15, 2, 8, 18

Answer: 10.75

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