Keystones — Lintel
Five GCSE retrieval questions · 8 August 2025 · mathsvault.uk/keystones
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1. Number
Calculate: 998 + 667
Answer: 1665 -
2. Algebra
Expand: 6(3x - 9)
Answer: 18x - 54 -
3. Geometry
Adjacent = 16cm, hypotenuse = 34cm. Find the angle
Answer: 61.9° -
4. Ratio
Find 69% of 218
Answer: 150.42 -
5. Statistics
A bag has 4 red and 3 blue balls. What is the probability of picking a red ball?
Answer: 4⁄7