Keystones — Capstone
Five GCSE retrieval questions · 17 October 2026 · mathsvault.uk/keystones
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1. Number Multiplying in standard form
Multiply: 4.8 × 105 × 3.5 × 103
Answer: 1.68 × 109 -
2. Algebra Inequalities with unknowns on both sides
Solve: 5x + 4 ≤ 4x - 7
Answer: x ≤ 11 -
3. Geometry Area using Pythagoras
A right triangle has hypotenuse 5cm and one side 3cm. Find its area
Answer: 6cm² -
4. Ratio Ratio given the difference
In ratio 7:4, the difference between shares is 75. What is the total?
Answer: 275 -
5. Statistics Mode
Find the mode of: 28, 59, 10, 44, 73
Answer: No mode