Keystones — Bedrock

Five GCSE retrieval questions · 19 December 2024 · mathsvault.uk/keystones

1. Number

Calculate: ⁹⁄₁₁ + ¹⁄₁₁

Answer: ¹⁰⁄₁₁
2. Algebra

Factorise: 20x + 25

Answer: 5(4x + 5)
3. Geometry

Opposite = 8cm, hypotenuse = 16cm. Find the angle

Answer: 30° (approximately)
4. Ratio

Calculate 10% of 176

Answer: 17.6
5. Statistics

Find the median of: 13, 5, 8, 19, 20

Answer: 13

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