Keystones — Cornerstone
Five GCSE retrieval questions · 11 September 2025 · mathsvault.uk/keystones
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1. Number
Calculate: 36 + 56
Answer: 36 + 56 = 92 -
2. Algebra
Solve: 7x = 35
Answer: x = 5 -
3. Geometry
Opposite = 7cm, hypotenuse = 8.cm. Find the angle
Answer: 60° (approximately) -
4. Ratio
Simplify the ratio 28:32
Answer: 7:8 -
5. Statistics
Find the mean of: 4, 15, 17, 20
Answer: 14