Keystones — Capstone
Five GCSE retrieval questions · 15 October 2026 · mathsvault.uk/keystones
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1. Number Multiplying in standard form
Multiply: 4.3 × 105 × 3 × 104
Answer: 1.29 × 1010 -
2. Algebra Inequalities with unknowns on both sides
Solve: 8x + 4 ≤ x - 2
Answer: x ≤ 0.9 -
3. Geometry Area using Pythagoras
Calculate the area of a right triangle with perpendicular sides 8cm and 11cm
Answer: 44cm² -
4. Ratio Ratio given the difference
In ratio 7:2, the difference between shares is 210. What is the total?
Answer: 378 -
5. Statistics Mode
Find the mode of: 33, 17, 73, 41, 56
Answer: No mode