Keystones — Bedrock

Five GCSE retrieval questions · 17 August 2024 · mathsvault.uk/keystones

1. Number

Calculate: ¹⁄₇ + ¹⁄₇

Answer: ²⁄₇
2. Algebra

Factorise: 28x + 32

Answer: 4(7x + 8)
3. Geometry

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

Answer: 60° (approximately)
4. Ratio

Simplify the ratio 12:28

Answer: 3:7
5. Statistics

Find the mean of: 19, 10, 16, 8

Answer: 13.25

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