Keystones — Capstone
Five GCSE retrieval questions · 30 August 2026 · mathsvault.uk/keystones
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1. Number Multiplying in standard form
Multiply: 9.9 × 104 × 2.8 × 105
Answer: 2.77 × 1010 -
2. Algebra Inequalities with unknowns on both sides
Solve: 8x + 7 ≤ 7x - 6
Answer: x ≤ 13 -
3. Geometry Area using Pythagoras
Calculate the area of a right triangle with perpendicular sides 7cm and 15cm
Answer: 52.5cm² -
4. Ratio Ratio given the difference
In ratio 5:2, the difference between shares is 99. What is the total?
Answer: 231 -
5. Statistics Mode
Find the mode of: 15, 43, 29, 70, 60
Answer: No mode