Keystones — Cornerstone
Five GCSE retrieval questions · 13 December 2024 · mathsvault.uk/keystones
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1. Number
Calculate: 63 + 85
Answer: 63 + 85 = 148 -
2. Algebra
Factorise: 2x² + 7x
Answer: x(2x + 7) -
3. Geometry
Opposite = 15cm, hypotenuse = 21.2cm. Find the angle
Answer: 45° (approximately) -
4. Ratio
Simplify: 12:6:4
Answer: 6:3:2 -
5. Statistics
Find the mean of: 3, 12, 4, 16
Answer: 8.75