Keystones — Cornerstone

Five GCSE retrieval questions · 14 April 2024 · mathsvault.uk/keystones

1. Number

7000

Answer: 7 × 10³
2. Algebra

Collect like terms: 6x + 6y + 8x + 3y

Answer: 14x + 9y
3. Geometry

Opposite = 9cm, adjacent = 9cm. Calculate the angle

Answer: 45°
4. Ratio

Simplify: 18:9:12

Answer: 6:3:4
5. Statistics

Find the mean of: 6, 17, 13

Answer: 12

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