Keystones — Lintel
Five GCSE retrieval questions · 27 June 2025 · mathsvault.uk/keystones
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1. Number
Calculate: 990 + 740
Answer: 1730 -
2. Algebra
What is the next term? 2, 8, 32, 128, ...
Answer: 512 -
3. Geometry
Adjacent = 17cm, hypotenuse = 25cm. Find the angle
Answer: 47.2° -
4. Ratio
Calculate 47.5% of 359
Answer: 170.53 -
5. Statistics
Find the range of: 34, -29, -28, 40, 26
Answer: 69