Keystones — Capstone
Five GCSE retrieval questions · 13 October 2026 · mathsvault.uk/keystones
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1. Number Multiplying in standard form
Multiply: 2.8 × 107 × 8.2 × 106
Answer: 2.3 × 1014 -
2. Algebra Inequalities with unknowns on both sides
Solve: 7x + 9 ≤ 5x - 7
Answer: x ≤ 8 -
3. Geometry Area using Pythagoras
Calculate the area of a right triangle with perpendicular sides 15cm and 6cm
Answer: 45cm² -
4. Ratio Ratio given the difference
In ratio 2:1, the difference between shares is 108. What is the total?
Answer: 324 -
5. Statistics Mode
Find the mode of: 14, 32, 41, 75, 56
Answer: No mode