Keystones — Lintel
Five GCSE retrieval questions · 18 December 2025 · mathsvault.uk/keystones
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1. Number
Calculate: 997 + 797
Answer: 1794 -
2. Algebra
What is the next term? 7, 14, 28, 56, ...
Answer: 112 -
3. Geometry
Find c if a = 19cm and b = 14cm in a right triangle
Answer: 23.6cm -
4. Ratio
Calculate 37.1% of 932
Answer: 345.77 -
5. Statistics
A spinner has 3 red, 5 blue and 5 green sections. Probability of landing on red?
Answer: 3⁄13