Keystones — Capstone
Five GCSE retrieval questions · 18 October 2026 · mathsvault.uk/keystones
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1. Number Multiplying in standard form
Multiply: 4.8 × 104 × 2.1 × 104
Answer: 1.01 × 109 -
2. Algebra Inequalities with unknowns on both sides
Solve: 4x + 5 ≤ x - 5
Answer: x ≤ 3.3 -
3. Geometry Area using Pythagoras
A right triangle has hypotenuse 13cm and one side 5cm. Find its area
Answer: 30cm² -
4. Ratio Ratio given the difference
In ratio 5:2, the difference between shares is 123. What is the total?
Answer: 287 -
5. Statistics Mode
Find the mode of: 25, 42, 63, 75, 15
Answer: No mode