Keystones — Bedrock

Five GCSE retrieval questions · 20 April 2024 · mathsvault.uk/keystones

1. Number

700000

Answer: 7 × 10⁵
2. Algebra

Find the next term: 11, 20, 29, 38, ...

Answer: 47
3. Geometry

Opposite = 5cm, hypotenuse = 7.cm. Find the angle

Answer: 45° (approximately)
4. Ratio

Simplify the ratio 16:14

Answer: 8:7
5. Statistics

Find the mean of: 6, 17, 6

Answer: 9.6666666666667

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