Keystones — Cornerstone
Five GCSE retrieval questions · 15 July 2026 · mathsvault.uk/keystones
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1. Number
What is the missing number: 68 + ? = 127
Answer: 59 -
2. Algebra
Expand: 8(x + 2)
Answer: 8x + 16 -
3. Geometry
Find the area of a circle with radius 5cm
Answer: 78.54cm² -
4. Ratio
Simplify: 6:12:12
Answer: 1:2:2 -
5. Statistics
Find the range of: 17, 24, 14, 17, 19
Answer: 10