Keystones — Lintel
Five GCSE retrieval questions · 5 January 2026 · mathsvault.uk/keystones
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1. Number
Calculate: 841 + 874
Answer: 841 + 874 = 1715 -
2. Algebra
Solve: 9x = 90
Answer: x = 10 -
3. Geometry
Opposite = 11cm, adjacent = 10cm. Calculate the angle
Answer: 47.7° -
4. Ratio
Simplify: 24:24:12
Answer: 2:2:1 -
5. Statistics
Find the range of: -3, 43, -23, -21, 1
Answer: 66