Keystones — Capstone
Five GCSE retrieval questions · 13 February 2026 · mathsvault.uk/keystones
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1. Number Multiplying in standard form
Multiply: 5.8 × 105 × 6.8 × 105
Answer: 3.94 × 1011 -
2. Algebra Inequalities with unknowns on both sides
Solve: 6x + 4 ≤ 5x - 9
Answer: x ≤ 13 -
3. Geometry Area using Pythagoras
Calculate the area of a right triangle with perpendicular sides 13cm and 12cm
Answer: 78cm² -
4. Ratio Ratio given the difference
In ratio 3:1, the difference between shares is 84. What is the total?
Answer: 168 -
5. Statistics Mode
Find the mode of: 75, 25, 14, 65, 50
Answer: No mode