Keystones — Lintel
Five GCSE retrieval questions · 23 November 2022 · mathsvault.uk/keystones
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1. Number
What is the missing number: 52 + ? = 167
Answer: 115 -
2. Algebra
What is the next term? 3, 9, 27, 81, ...
Answer: 243 -
3. Geometry
A circle has area 78.5cm². Find its radius (dp)
Answer: 5cm -
4. Ratio
Simplify: 8:24:8
Answer: 1:3:1 -
5. Statistics
Find the range of: -27, 24, 8, -11, 24
Answer: 51