Keystones — Cornerstone
Five GCSE retrieval questions · 3 January 2023 · mathsvault.uk/keystones
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1. Number
Calculate: 29 + 73
Answer: 29 + 73 = 102 -
2. Algebra
Factorise: 3x² + 7x
Answer: x(3x + 7) -
3. Geometry
Opposite = 5cm, hypotenuse = 7.cm. Find the angle
Answer: 45° (approximately) -
4. Ratio
Find 58% of 288
Answer: 167.04 -
5. Statistics
Find the mean of: 16, 13, 20, 17, 15
Answer: 16.2