Keystones — Lintel
Five GCSE retrieval questions · 17 August 2025 · mathsvault.uk/keystones
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1. Number
Simplify: x4 × x4
Answer: x8 -
2. Algebra
Solve: 8x = 120
Answer: x = 15 -
3. Geometry
Adjacent = 20cm, hypotenuse = 29cm. Find the angle
Answer: 46.4° -
4. Ratio
Simplify the ratio 7m:700cm
Answer: 1:100 -
5. Statistics
A bag has 6 red and 5 blue balls. What is the probability of picking a red ball?
Answer: 6⁄11