Keystones — Cornerstone
Five GCSE retrieval questions · 1 July 2025 · mathsvault.uk/keystones
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1. Number
Calculate: 74 + 63
Answer: 74 + 63 = 137 -
2. Algebra
Factorise: 2x² + 9x
Answer: x(2x + 9) -
3. Geometry
Opposite = 10cm, hypotenuse = 20cm. Find the angle
Answer: 30° (approximately) -
4. Ratio
Calculate 10% of 57
Answer: 5.7 -
5. Statistics
Find the range of: 10, 16, 20, 12, 14
Answer: 10