Keystones — Lintel
Five GCSE retrieval questions · 27 May 2026 · mathsvault.uk/keystones
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1. Number
Calculate: 301 + 526
Answer: 301 + 526 = 827 -
2. Algebra
Solve: 2x = 28
Answer: x = 14 -
3. Geometry
Adjacent = 12cm, hypotenuse = 18cm. Find the angle
Answer: 48.2° -
4. Ratio
Calculate 24.6% of 588
Answer: 144.65 -
5. Statistics
A bag has 8 red and 5 blue balls. What is the probability of picking a red ball?
Answer: 8⁄13