Keystones — Cornerstone

Five GCSE retrieval questions · 3 March 2024 · mathsvault.uk/keystones

1. Number

Simplify: 3² × 3⁴

Answer: 3⁶
2. Algebra

Expand: 3(2x + 7)

Answer: 6x + 21
3. Geometry

Calculate the distance between (3, 8) and (6, 12)

Answer: 5
4. Ratio

Simplify: 8:4:4

Answer: 2:1:1
5. Statistics

Find the range of: 22, 28, 15, 42, 28

Answer: 27

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