Keystones — Cornerstone
Five GCSE retrieval questions · 25 February 2023 · mathsvault.uk/keystones
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1. Number
Calculate: 92 + 90
Answer: 92 + 90 = 182 -
2. Algebra
Factorise: 18x + 12
Answer: 6(3x + 2) -
3. Geometry
Opposite = 8cm, hypotenuse = 16cm. Find the angle
Answer: 30° (approximately) -
4. Ratio
Simplify: 10:4:10
Answer: 5:2:5 -
5. Statistics
Calculate the range of: 57, 35, 27, 26, 57, 30
Answer: 31