Keystones — Cornerstone
Five GCSE retrieval questions · 26 May 2025 · mathsvault.uk/keystones
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1. Number
Calculate: 906 + 800
Answer: 906 + 800 = 1706 -
2. Algebra
Solve: x + 13 = 30
Answer: x = 17 -
3. Geometry
Calculate the area of a circle with diameter 23cm
Answer: 415.48cm² -
4. Ratio
Find 19% of 419
Answer: 79.61 -
5. Statistics
Find the mean of: 14, 20, 15
Answer: 16.333333333333