Keystones — Capstone
Five GCSE retrieval questions · 24 May 2026 · mathsvault.uk/keystones
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1. Number Multiplying in standard form
Multiply: 3 × 106 × 4.3 × 106
Answer: 1.29 × 1013 -
2. Algebra Inequalities with unknowns on both sides
Solve: 4x + 11 ≤ 2x - 7
Answer: x ≤ 9 -
3. Geometry Area using Pythagoras
A right triangle has hypotenuse 10cm and one side 6cm. Find its area
Answer: 24cm² -
4. Ratio Ratio given the difference
In ratio 7:3, the difference between shares is 180. What is the total?
Answer: 450 -
5. Statistics Mode
Find the mode of: 30, 60, 75, 15, 43
Answer: No mode