Keystones — Lintel
Five GCSE retrieval questions · 1 October 2022 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 123. What are the numbers?
Answer: 40, 41, and 42 -
2. Algebra
Solve: 8x = 120
Answer: x = 15 -
3. Geometry
A circle has area 254.5cm². Find its radius (dp)
Answer: 9cm -
4. Ratio
Calculate 31.1% of 708
Answer: 220.19 -
5. Statistics
Find the range of: -5, -30, -23, -19, 27
Answer: 57