Keystones — Capstone
Five GCSE retrieval questions · 28 April 2026 · mathsvault.uk/keystones
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1. Number Dividing in standard form
Divide: 4 × 108 ÷ 5.9 × 106
Answer: 6.78 × 101 -
2. Algebra Solving non-monic quadratics
Solve: 3x² + 12x + 9 = 0
Answer: x = -1 or x = -3 -
3. Geometry SOHCAHTOA — missing angle
Adjacent = 14cm, hypotenuse = 30cm. Find the angle
Answer: 62.2° -
4. Ratio Mixed ratio problems
£210.00 is shared between A and B in the ratio 2:5. How much does A receive?
Answer: £60.00 -
5. Statistics Median
Find the median of: 71, 29, 77, 50, 46, 40, 24, 25, 43, 21
Answer: 43