Keystones — Cornerstone
Five GCSE retrieval questions · 11 December 2024 · mathsvault.uk/keystones
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1. Number
Calculate: 91 + 96
Answer: 91 + 96 = 187 -
2. Algebra
Factorise: 20x + 28
Answer: 4(5x + 7) -
3. Geometry
Opposite = 8cm, hypotenuse = 11.3cm. Find the angle
Answer: 45° (approximately) -
4. Ratio
Simplify: 20:12:12
Answer: 5:3:3 -
5. Statistics
Calculate the mean of: 34, 47, 44, 16, 42, 7, 24, 7
Answer: 27.6