Keystones — Bedrock

Five GCSE retrieval questions · 2 September 2024 · mathsvault.uk/keystones

1. Number

Simplify: 5⁴ × 5³

Answer: 5⁷
2. Algebra

Simplify: 7x + 6x

Answer: 13x
3. Geometry

Opposite = 8cm, hypotenuse = 9.2cm. Find the angle

Answer: 60° (approximately)
4. Ratio

Calculate 10% of 141

Answer: 14.1
5. Statistics

Find the mean of: 12, 4, 11, 15

Answer: 10.5

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