Keystones — Cornerstone
Five GCSE retrieval questions · 27 April 2025 · mathsvault.uk/keystones
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1. Number
Calculate: 88 + 25
Answer: 88 + 25 = 113 -
2. Algebra
Factorise: 30x + 24
Answer: 6(5x + 4) -
3. Geometry
Opposite = 10cm, hypotenuse = 14.cm. Find the angle
Answer: 45° (approximately) -
4. Ratio
Calculate 10% of 149
Answer: 14.9 -
5. Statistics
Calculate the range of: 66, 35, 26, 87, 39, 42
Answer: 61