Keystones — Cornerstone
Five GCSE retrieval questions · 9 August 2026 · mathsvault.uk/keystones
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1. Number
Calculate: 45 + 37
Answer: 45 + 37 = 82 -
2. Algebra
Solve: 8x = 56
Answer: x = 7 -
3. Geometry
Opposite = 19cm, adjacent = 18cm. Calculate the angle
Answer: 46.5° -
4. Ratio
Calculate 10% of 28
Answer: 2.8 -
5. Statistics
Find the mean of: 7, 8, 19
Answer: 11.333333333333