Keystones — Capstone
Five GCSE retrieval questions · 25 January 2026 · mathsvault.uk/keystones
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1. Number Dividing in standard form
Divide: 4.7 × 106 ÷ 6.7 × 106
Answer: 7.01 × 10-1 -
2. Algebra Solving non-monic quadratics
Solve: 6x² + 11x + 3 = 0
Answer: x = -1⁄2 or x = -1 -
3. Geometry Sohcahtoa — missing angle
Adjacent = 20cm, hypotenuse = 29cm. Find the angle
Answer: 46.4° -
4. Ratio Mixed ratio problems
Simplify the ratio 4m:400cm
Answer: 1:100 -
5. Statistics Median
Find the median of: 80, 45, 71, 48, 53, 31, 80, 22, 75
Answer: 53