Keystones — Lintel
Five GCSE retrieval questions · 29 May 2026 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 114. What are the numbers?
Answer: 37, 38, and 39 -
2. Algebra
Find the next term: 1, 2, 4, 7, ...
Answer: 11 -
3. Geometry
Opposite = 8cm, adjacent = 11cm. Calculate the angle
Answer: 36° -
4. Ratio
Calculate 10.5% of 679
Answer: 71.3 -
5. Statistics
A spinner has 4 red, 3 blue and 3 green sections. Probability of landing on red?
Answer: 2⁄5