Keystones — Cornerstone
Five GCSE retrieval questions · 4 March 2026 · mathsvault.uk/keystones
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1. Number Multiplying fractions
Multiply: 4⁄6 × 3⁄8
Answer: 1⁄4 -
2. Algebra Expanding single brackets
Expand: 6(6x + 2)
Answer: 36x + 12 -
3. Geometry Pythagoras — short side
In a right triangle, if c = 5cm and a = 3cm, find b
Answer: 4cm -
4. Ratio Ratio given the difference
A and B share in ratio 5:4. If the difference is 27, what does A get?
Answer: 135 -
5. Statistics Range
Find the range of: 20, 21, 14, 14, 6
Answer: 15