Keystones — Cornerstone
Five GCSE retrieval questions · 18 February 2024 · mathsvault.uk/keystones
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1. Number
Calculate: 44 + 31
Answer: 44 + 31 = 75 -
2. Algebra
Factorise: 2x² + 8x
Answer: 2x(x + 4) -
3. Geometry
Opposite = 10cm, hypotenuse = 20cm. Find the angle
Answer: 30° (approximately) -
4. Ratio
Simplify the ratio 15:24
Answer: 5:8 -
5. Statistics
Calculate the mean of: 50, 40, 30, 23, 36, 31
Answer: 35