Keystones — Capstone
Five GCSE retrieval questions · 16 October 2026 · mathsvault.uk/keystones
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1. Number Multiplying in standard form
Multiply: 6.1 × 106 × 2.3 × 106
Answer: 1.4 × 1013 -
2. Algebra Inequalities with unknowns on both sides
Solve: 5x + 5 ≤ 2x - 3
Answer: x ≤ 2.7 -
3. Geometry Area using Pythagoras
A right triangle has hypotenuse 17cm and one side 8cm. Find its area
Answer: 60cm² -
4. Ratio Ratio given the difference
In ratio 9:7, the difference between shares is 68. What is the total?
Answer: 544 -
5. Statistics Mode
Find the mode of: 55, 78, 46, 25, 17
Answer: No mode