Keystones — Bedrock

Five GCSE retrieval questions · 30 July 2022 · mathsvault.uk/keystones

1. Number

Calculate: ⁴⁄₇ + ²⁄₇

Answer: ⁶⁄₇
2. Algebra

Factorise: 4x + 10

Answer: 2(2x + 5)
3. Geometry

Opposite = 8cm, hypotenuse = 11.3cm. Find the angle

Answer: 45° (approximately)
4. Ratio

Simplify the ratio 28:12

Answer: 7:3
5. Statistics

Find the mean of: 11, 14, 20, 2, 11

Answer: 11.6

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