Keystones — Cornerstone
Five GCSE retrieval questions · 11 February 2026 · mathsvault.uk/keystones
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1. Number Dividing fractions
Divide: 5⁄8 ÷ 1⁄7
Answer: 35⁄8 -
2. Algebra Two-step inequalities
Solve: 3x + 5 < 45
Answer: x < 13.3 -
3. Geometry Area of a right-angled triangle
Calculate the area of a right triangle with perpendicular sides 9cm and 6cm
Answer: 27cm² -
4. Ratio Unitary method
7 kg costs £11.70. What is the cost of 12 kg?
Answer: £20.06 -
5. Statistics Mode
What are the modes of: 37, 37, 17, 20, 20, 25
Answer: 20 and 37