Keystones — Cornerstone
Five GCSE retrieval questions · 2 March 2026 · mathsvault.uk/keystones
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1. Number
What is the missing number: 94 + ? = 128
Answer: 34 -
2. Algebra
Find the next term: 30, 40, 50, 60, ...
Answer: 70 -
3. Geometry
Opposite = 14cm, adjacent = 8cm. Calculate the angle
Answer: 60.3° -
4. Ratio
Simplify the ratio 18:9
Answer: 2:1 -
5. Statistics
Find the mean of: 19, 6, 5, 7
Answer: 9.25