Keystones — Bedrock

Five GCSE retrieval questions · 23 November 2023 · mathsvault.uk/keystones

1. Number

Simplify: 8⁴ × 8²

Answer: 8⁶
2. Algebra

Find the next term: 28, 32, 36, 40, ...

Answer: 44
3. Geometry

Opposite = 12cm, hypotenuse = 24cm. Find the angle

Answer: 30° (approximately)
4. Ratio

Simplify the ratio 8:20

Answer: 2:5
5. Statistics

Find the mean of: 19, 16, 6

Answer: 13.666666666667

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