Keystones — Lintel
Five GCSE retrieval questions · 13 February 2025 · mathsvault.uk/keystones
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1. Number
Calculate: 993 + 565
Answer: 1558 -
2. Algebra
Expand: 3(6x + 2)
Answer: 18x + 6 -
3. Geometry
Find the perimeter: hypotenuse = 15cm, one side = 11cm
Answer: 36.2cm -
4. Ratio
Simplify: 10:6:12
Answer: 5:3:6 -
5. Statistics
Calculate the mean of: 39, 7, 50, 43, 26, 40, 10, 25
Answer: 30