Keystones — Lintel
Five GCSE retrieval questions · 25 October 2025 · mathsvault.uk/keystones
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1. Number
Calculate: 999 + 706
Answer: 1705 -
2. Algebra
Find the next term: 1, 3, 7, 13, ...
Answer: 21 -
3. Geometry
Opposite = 20cm, adjacent = 8cm. Calculate the angle
Answer: 68.2° -
4. Ratio
Find 36% of 201
Answer: 72.36 -
5. Statistics
Find the range of: 47, 23, -1, -20, 41
Answer: 67