Keystones — Capstone
Five GCSE retrieval questions · 1 May 2026 · mathsvault.uk/keystones
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1. Number Dividing in standard form
Divide: 1.9 × 107 ÷ 7.5 × 106
Answer: 2.53 × 100 -
2. Algebra Solving non-monic quadratics
Solve: 2x² + 14x + 24 = 0
Answer: x = -4 or x = -3 -
3. Geometry SOHCAHTOA — missing angle
Adjacent = 17cm, hypotenuse = 32cm. Find the angle
Answer: 57.9° -
4. Ratio Mixed ratio problems
£273.00 is shared between A and B in the ratio 2:5. How much does A receive?
Answer: £78.00 -
5. Statistics Median
Find the median of: 38, 69, 33, 29, 20, 48, 41, 26, 56, 71, 54
Answer: 41