Keystones — Cornerstone
Five GCSE retrieval questions · 3 November 2026 · mathsvault.uk/keystones
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1. Number Multiplying fractions
Calculate: 5⁄5 × 8
Answer: 8 -
2. Algebra Expanding single brackets
Expand: 3(x + 7)
Answer: 3x + 21 -
3. Geometry Pythagoras — short side
Find b if a = 9cm and c = 14cm
Answer: 10.72cm -
4. Ratio Ratio given the difference
In ratio 7:1, the difference between shares is 102. What are the shares?
Answer: 119 and 17 -
5. Statistics Range
Calculate the range of: 45, 47, 60, 73, 75, 45
Answer: 30