Keystones — Cornerstone

Five GCSE retrieval questions · 21 May 2024 · mathsvault.uk/keystones

1. Number

30000

Answer: 3 × 10⁴
2. Algebra

Simplify: 5x + 8x

Answer: 13x
3. Geometry

Opposite = 8cm, adjacent = 11cm. Calculate the angle

Answer: 36°
4. Ratio

Simplify the ratio 32:16

Answer: 2:1
5. Statistics

Calculate the mean of: 9, 21, 17, 27, 12, 43

Answer: 21.5

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