Keystones — Cornerstone
Five GCSE retrieval questions · 4 September 2025 · mathsvault.uk/keystones
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1. Number
What is the missing number: 60 + ? = 114
Answer: 54 -
2. Algebra
What is the next term? 4, 16, 64, 256, ...
Answer: 1024 -
3. Geometry
Opposite = 10cm, hypotenuse = 11.5cm. Find the angle
Answer: 60° (approximately) -
4. Ratio
Simplify the ratio 6:18
Answer: 1:3 -
5. Statistics
Find the range of: 21, 5, 9, 30, 11
Answer: 25