Keystones — Capstone
Five GCSE retrieval questions · 9 August 2026 · mathsvault.uk/keystones
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1. Number Dividing in standard form
Divide: 2.3 × 106 ÷ 5.7 × 106
Answer: 4.04 × 10-1 -
2. Algebra Solving non-monic quadratics
Solve: 2x² + 6x + 4 = 0
Answer: x = -1 or x = -2 -
3. Geometry SOHCAHTOA — missing angle
Adjacent = 28cm, hypotenuse = 34cm. Find the angle
Answer: 34.6° -
4. Ratio Mixed ratio problems
Simplify the ratio 7m:700cm
Answer: 1:100 -
5. Statistics Median
Find the median of: 52, 24, 46, 36, 79, 20, 68, 71, 51, 66
Answer: 52