Keystones — Cornerstone
Five GCSE retrieval questions · 2 March 2026 · mathsvault.uk/keystones
-
1. Number Multiplying fractions
Calculate: 1⁄11 × 4
Answer: 4⁄11 -
2. Algebra Expanding single brackets
Expand: 3(x + 6)
Answer: 3x + 18 -
3. Geometry Pythagoras — short side
Find b if a = 5cm and c = 14cm
Answer: 13.08cm -
4. Ratio Ratio given the difference
In ratio 5:3, the difference between shares is 26. What are the shares?
Answer: 65 and 39 -
5. Statistics Range
Find the range of: 25, 19, 28, 30, 27
Answer: 11