Keystones — Cornerstone
Five GCSE retrieval questions · 25 July 2025 · mathsvault.uk/keystones
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1. Number
Calculate: 73 + 49
Answer: 73 + 49 = 122 -
2. Algebra
What is the next term? 5, 20, 80, 320, ...
Answer: 1280 -
3. Geometry
Calculate the area of a circle with diameter 22cm
Answer: 380.13cm² -
4. Ratio
Find 15% of 130
Answer: 19.5 -
5. Statistics
Find the range of: 28, 16, 28, 33, 33
Answer: 17