Keystones — Cornerstone
Five GCSE retrieval questions · 3 May 2026 · mathsvault.uk/keystones
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1. Number
Calculate: 222 + 297
Answer: 222 + 297 = 519 -
2. Algebra
What is the next term? 8, 24, 72, 216, ...
Answer: 648 -
3. Geometry
Opposite = 7cm, hypotenuse = 8.cm. Find the angle
Answer: 60° (approximately) -
4. Ratio
Find 80% of 484
Answer: 387.2 -
5. Statistics
What is the probability of getting heads when flipping a fair coin?
Answer: 1⁄2