Keystones — Cornerstone
Five GCSE retrieval questions · 3 June 2025 · mathsvault.uk/keystones
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1. Number
Calculate: 41 + 34
Answer: 41 + 34 = 75 -
2. Algebra
What is the next term? 4, 12, 36, 108, ...
Answer: 324 -
3. Geometry
Find the perimeter of a right triangle with sides 6cm and 8cm
Answer: 24cm -
4. Ratio
Simplify: 15:12:9
Answer: 5:4:3 -
5. Statistics
Calculate the mean of: 40, 32, 42, 49, 28, 50, 13, 12
Answer: 33.3