Keystones — Lintel
Five GCSE retrieval questions · 16 May 2025 · mathsvault.uk/keystones
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1. Number
What is the missing number: 31 + ? = 167
Answer: 136 -
2. Algebra
What is the next term? 5, 20, 80, 320, ...
Answer: 1280 -
3. Geometry
Adjacent = 15cm, hypotenuse = 23cm. Find the angle
Answer: 49.3° -
4. Ratio
Simplify the ratio 7m:700cm
Answer: 1:100 -
5. Statistics
Find the range of: 42, -27, -27, 26, 32
Answer: 69