Keystones — Cornerstone
Five GCSE retrieval questions · 28 February 2025 · mathsvault.uk/keystones
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1. Number
What is ∛8?
Answer: 2 -
2. Algebra
Simplify: 8x + 8x
Answer: 16x -
3. Geometry
Find the hypotenuse of a right triangle with sides 6cm and 8cm
Answer: 10cm -
4. Ratio
Simplify: 12:9:15
Answer: 4:3:5 -
5. Statistics
Find the mean of: 14, 15, 16, 9, 14
Answer: 13.6