Keystones — Lintel
Five GCSE retrieval questions · 23 May 2026 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 96. What are the numbers?
Answer: 31, 32, and 33 -
2. Algebra
Solve: 8x = 80
Answer: x = 10 -
3. Geometry
Opposite = 9cm, adjacent = 11cm. Calculate the angle
Answer: 39.3° -
4. Ratio
Simplify: 12:15:12
Answer: 4:5:4 -
5. Statistics
Find the range of: 25, 1, 47, -17, -18
Answer: 65