Keystones — Bedrock

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

1. Number

Calculate: ⁵⁄₁₁ + ⁴⁄₁₁

Answer: ⁹⁄₁₁
2. Algebra

Simplify: 2x + 4x

Answer: 6x
3. Geometry

Opposite = 13cm, hypotenuse = 15cm. Find the angle

Answer: 60° (approximately)
4. Ratio

In ratio 4:1, the difference between shares is 90. What are the shares?

Answer: 120 and 30
5. Statistics

Find the mean of: 11, 15, 6

Answer: 10.666666666667

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