Keystones — Lintel
Five GCSE retrieval questions · 28 April 2026 · mathsvault.uk/keystones
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1. Number
Calculate: 196 + 947
Answer: 196 + 947 = 1143 -
2. Algebra
Find the next term: 1, 4, 10, 19, ...
Answer: 31 -
3. Geometry
Adjacent = 12cm, hypotenuse = 26cm. Find the angle
Answer: 62.5° -
4. Ratio
Find 81% of 304
Answer: 246.24 -
5. Statistics
Calculate the mean of: 10, 33, 30, 9, 8, 30
Answer: 20