Keystones — Capstone
Five GCSE retrieval questions · 27 August 2026 · mathsvault.uk/keystones
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1. Number Multiplying in standard form
Multiply: 2.7 × 105 × 7.9 × 103
Answer: 2.13 × 109 -
2. Algebra Inequalities with unknowns on both sides
Solve: 7x + 5 ≤ 5x - 4
Answer: x ≤ 4.5 -
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 3:2, the difference between shares is 75. What is the total?
Answer: 375 -
5. Statistics Mode
Find the mode of: 27, 16, 43, 77, 56
Answer: No mode