Keystones — Lintel
Five GCSE retrieval questions · 16 September 2025 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 135. What are the numbers?
Answer: 44, 45, and 46 -
2. Algebra
What is the next term? 4, 8, 16, 32, ...
Answer: 64 -
3. Geometry
Opposite = 19cm, adjacent = 14cm. Calculate the angle
Answer: 53.6° -
4. Ratio
Simplify: 12:6:8
Answer: 6:3:4 -
5. Statistics
Find the range of: 21, -19, 41, -19, 25
Answer: 60