Keystones — Lintel
Five GCSE retrieval questions · 28 January 2025 · mathsvault.uk/keystones
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1. Number
Find the total of 295, 258, and 144
Answer: 697 -
2. Algebra
Factorise fully: 28x² + 12x
Answer: 4x(7x + 3) -
3. Geometry
Adjacent = 15cm, hypotenuse = 30cm. Find the angle
Answer: 60° -
4. Ratio
Calculate 15% of 516
Answer: 77.4 -
5. Statistics
A bag has 8 red and 3 blue balls. What is the probability of picking a red ball?
Answer: 8⁄11