Keystones — Lintel
Five GCSE retrieval questions · 9 October 2024 · mathsvault.uk/keystones
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1. Number
What is the missing number: 95 + ? = 148
Answer: 53 -
2. Algebra
Factorise fully: 15x² + 15x
Answer: 5x(3x + 3) -
3. Geometry
Adjacent = 24cm, hypotenuse = 36cm. Find the angle
Answer: 48.2° -
4. Ratio
Simplify: 9:18:6
Answer: 3:6:2 -
5. Statistics
A bag has 8 red and 8 blue balls. What is the probability of picking a red ball?
Answer: 1⁄2