Keystones — Lintel
Five GCSE retrieval questions · 4 April 2026 · mathsvault.uk/keystones
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1. Number
Calculate: 676 + 576
Answer: 676 + 576 = 1252 -
2. Algebra
Factorise fully: 35x² + 35x
Answer: 5x(7x + 7) -
3. Geometry
Opposite = 19cm, adjacent = 18cm. Calculate the angle
Answer: 46.5° -
4. Ratio
Simplify: 18:12:6
Answer: 3:2:1 -
5. Statistics
Find the range of: -28, 26, -21, 20, 26
Answer: 54