Keystones Bedrock — 26 October 2021

Keystones — Bedrock

Five GCSE retrieval questions · 26 October 2021 · mathsvault.uk/keystones

1. Number

Simplify: 4³ × 4⁴

Answer: 4⁷
2. Algebra

Find the next term: 8, 10, 12, 14, ...

Answer: 16
3. Geometry

Opposite = 5cm, hypotenuse = 10cm. Find the angle

Answer: 30° (approximately)
4. Ratio

Simplify the ratio 15:40

Answer: 3:8
5. Statistics

Find the mean of: 3, 6, 6, 10, 8

Answer: 6.6

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