Keystones — Cornerstone
Five GCSE retrieval questions · 28 June 2026 · mathsvault.uk/keystones
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1. Number
Find the total of 154, 173, and 148
Answer: 475 -
2. Algebra
Solve: 8x = 56
Answer: x = 7 -
3. Geometry
Opposite = 13cm, hypotenuse = 18.4cm. Find the angle
Answer: 45° (approximately) -
4. Ratio
Simplify: 15:15:9
Answer: 5:5:3 -
5. Statistics
Find the mean of: 12, 11, 15, 18, 19
Answer: 15