Keystones — Lintel
Five GCSE retrieval questions · 1 July 2025 · mathsvault.uk/keystones
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1. Number
Calculate: 998 + 535
Answer: 1533 -
2. Algebra
Solve: 2x = 18
Answer: x = 9 -
3. Geometry
Opposite = 11cm, adjacent = 17cm. Calculate the angle
Answer: 32.9° -
4. Ratio
Simplify the ratio 2m:200cm
Answer: 1:100 -
5. Statistics
A bag has 3 red and 8 blue balls. What is the probability of picking a red ball?
Answer: 3⁄11