Keystones — Lintel
Five GCSE retrieval questions · 15 January 2023 · mathsvault.uk/keystones
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1. Number
Calculate: (-12) + (-20) + (-14)
Answer: -46 -
2. Algebra
Factorise: 6x² + 9x
Answer: 3x(2x + 3) -
3. Geometry
Adjacent = 18cm, hypotenuse = 23cm. Find the angle
Answer: 38.5° -
4. Ratio
Simplify: 18:6:6
Answer: 3:1:1 -
5. Statistics
Calculate the mean of: 10, 40, 44, 20, 31, 6, 45, 11
Answer: 25.9