Keystones — Lintel
Five GCSE retrieval questions · 7 October 2025 · mathsvault.uk/keystones
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1. Number
Calculate: 343 + 663
Answer: 343 + 663 = 1006 -
2. Algebra
What is the next term? 4, 8, 16, 32, ...
Answer: 64 -
3. Geometry
Calculate the hypotenuse when a = 9cm and b = 8cm
Answer: 12.04cm -
4. Ratio
Simplify: 6:4:12
Answer: 3:2:6 -
5. Statistics
Find the range of: 31, 40, 16, -4, -29
Answer: 69