Keystones — Capstone
Five GCSE retrieval questions · 24 September 2026 · mathsvault.uk/keystones
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1. Number Dividing in standard form
Divide: 1.3 × 106 ÷ 7 × 106
Answer: 1.86 × 10-1 -
2. Algebra Solving non-monic quadratics
Solve: 2x² + 10x + 12 = 0
Answer: x = -2 or x = -3 -
3. Geometry SOHCAHTOA — missing angle
Adjacent = 20cm, hypotenuse = 29cm. Find the angle
Answer: 46.4° -
4. Ratio Mixed ratio problems
£168.00 is shared between A and B in the ratio 2:1. How much does A receive?
Answer: £112.00 -
5. Statistics Median
Find the median of: 45, 42, 57, 60, 58, 25, 47, 74, 37, 72
Answer: 57