Keystones — Bedrock

Five GCSE retrieval questions · 26 December 2022 · mathsvault.uk/keystones

1. Number

Calculate: ⁸⁄₁₁ + ¹⁄₁₁

Answer: ⁹⁄₁₁
2. Algebra

Simplify: 5x + 4x

Answer: 9x
3. Geometry

Opposite = 10cm, hypotenuse = 14.cm. Find the angle

Answer: 45° (approximately)
4. Ratio

Calculate 50% of 175

Answer: 87.5
5. Statistics

Find the mean of: 18, 13, 20

Answer: 17

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