Keystones — Cornerstone
Five GCSE retrieval questions · 13 September 2025 · mathsvault.uk/keystones
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1. Number
Calculate: 95 + 99
Answer: 95 + 99 = 194 -
2. Algebra
Factorise: 10x + 6
Answer: 2(5x + 3) -
3. Geometry
Opposite = 5cm, hypotenuse = 7.cm. Find the angle
Answer: 45° (approximately) -
4. Ratio
Simplify the ratio 18:6
Answer: 3:1 -
5. Statistics
Calculate the range of: 84, 47, 71, 52, 74, 37
Answer: 47