Keystones — Cornerstone
Five GCSE retrieval questions · 5 December 2025 · mathsvault.uk/keystones
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1. Number
Calculate: 447 + 162
Answer: 447 + 162 = 609 -
2. Algebra
What is the next term? 2, 6, 18, 54, ...
Answer: 162 -
3. Geometry
Opposite = 16cm, adjacent = 10cm. Calculate the angle
Answer: 58° -
4. Ratio
Simplify: 12:6:4
Answer: 6:3:2 -
5. Statistics
Find the range of: 18, 25, 19, 19, 12
Answer: 13