Keystones — Lintel
Five GCSE retrieval questions · 26 April 2026 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 126. What are the numbers?
Answer: 41, 42, and 43 -
2. Algebra
What is the next term? 7, 28, 112, 448, ...
Answer: 1792 -
3. Geometry
Opposite = 12cm, adjacent = 18cm. Calculate the angle
Answer: 33.7° -
4. Ratio
Find 69% of 151
Answer: 104.19 -
5. Statistics
Find the range of: 8, 31, -10, 15, 27
Answer: 41