Keystones — Bedrock

Five GCSE retrieval questions · 18 February 2024 · mathsvault.uk/keystones

1. Number

Calculate: ⁴⁄₇ + ²⁄₇

Answer: ⁶⁄₇
2. Algebra

Factorise: 21x + 18

Answer: 3(7x + 6)
3. Geometry

Opposite = 5cm, hypotenuse = 5.8cm. Find the angle

Answer: 60° (approximately)
4. Ratio

Simplify the ratio 8:16

Answer: 1:2
5. Statistics

Find the mean of: 2, 16, 4, 17

Answer: 9.75

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