Keystones — Lintel
Five GCSE retrieval questions · 15 April 2026 · mathsvault.uk/keystones
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1. Number
Calculate: 243 + 933
Answer: 243 + 933 = 1176 -
2. Algebra
Find the next term: 1, 4, 10, 19, ...
Answer: 31 -
3. Geometry
Adjacent = 25cm, hypotenuse = 45cm. Find the angle
Answer: 56.3° -
4. Ratio
Simplify the ratio 8m:800cm
Answer: 1:100 -
5. Statistics
Calculate the mean of: 38, 13, 10, 33, 12, 49
Answer: 25.8