Keystones — Cornerstone
Five GCSE retrieval questions · 25 March 2025 · mathsvault.uk/keystones
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1. Number
Find the total of 169, 248, and 133
Answer: 550 -
2. Algebra
Solve: x + 9 = 13
Answer: x = 4 -
3. Geometry
Find the area of a circle with radius 4cm
Answer: 50.27cm² -
4. Ratio
Calculate 25% of 69
Answer: 17.25 -
5. Statistics
Calculate the mean of: 36, 12, 24, 15, 18, 13
Answer: 19.7