Keystones — Capstone
Five GCSE retrieval questions · 21 May 2026 · mathsvault.uk/keystones
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1. Number Multiplying in standard form
Multiply: 8.1 × 105 × 8.2 × 106
Answer: 6.64 × 1012 -
2. Algebra Inequalities with unknowns on both sides
Solve: 5x + 5 ≤ 2x - 5
Answer: x ≤ 3.3 -
3. Geometry Area using Pythagoras
Calculate the area of a right triangle with perpendicular sides 13cm and 7cm
Answer: 45.5cm² -
4. Ratio Ratio given the difference
In ratio 7:2, the difference between shares is 150. What is the total?
Answer: 270 -
5. Statistics Mode
Find the mode of: 58, 14, 25, 79, 49
Answer: No mode