Keystones — Bedrock

Five GCSE retrieval questions · 18 April 2022 · mathsvault.uk/keystones

1. Number

Simplify: 4⁴ × 4²

Answer: 4⁶
2. Algebra

Find the next term: 5, 13, 21, 29, ...

Answer: 37
3. Geometry

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

Answer: 60° (approximately)
4. Ratio

In ratio 5:1, the difference between shares is 68. What are the shares?

Answer: 85 and 17
5. Statistics

Find the mean of: 20, 14, 7, 12

Answer: 13.25

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