Keystones — Cornerstone
Five GCSE retrieval questions · 3 July 2026 · mathsvault.uk/keystones
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1. Number
Find the total of 158, 141, and 136
Answer: 435 -
2. Algebra
Find the next term: 25, 34, 43, 52, ...
Answer: 61 -
3. Geometry
Opposite = 13cm, adjacent = 18cm. Calculate the angle
Answer: 35.8° -
4. Ratio
Simplify: 18:15:18
Answer: 6:5:6 -
5. Statistics
What is the probability of rolling a 3 on a fair die?
Answer: 1⁄6