Keystones — Lintel
Five GCSE retrieval questions · 11 February 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
Find the next term: 1, 3, 7, 13, ...
Answer: 21 -
3. Geometry
A circle has area 314.2cm². Find its radius (dp)
Answer: 10cm -
4. Ratio
Simplify: 6:12:18
Answer: 1:2:3 -
5. Statistics
A spinner has 6 red, 4 blue and 3 green sections. Probability of landing on red?
Answer: 6⁄13