Keystones — Cornerstone
Five GCSE retrieval questions · 15 January 2026 · mathsvault.uk/keystones
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1. Number Multiplying fractions
Multiply: 4⁄5 × 5⁄5
Answer: 4⁄5 -
2. Algebra Expanding single brackets
Expand: 3(x + 2)
Answer: 3x + 6 -
3. Geometry Pythagoras — short side
Find b if a = 12cm and c = 22cm
Answer: 18.44cm -
4. Ratio Ratio given the difference
In ratio 4:3, the difference between shares is 11. What are the shares?
Answer: 44 and 33 -
5. Statistics Range
Calculate the range of: 49, 59, 38, 57, 45, 80
Answer: 42