Keystones — Lintel
Five GCSE retrieval questions · 6 May 2023 · mathsvault.uk/keystones
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1. Number
Simplify: x4 × x4
Answer: x8 -
2. Algebra
Solve: 5x = 55
Answer: x = 11 -
3. Geometry
A circle has area 153.9cm². Find its radius (dp)
Answer: 7cm -
4. Ratio
Simplify: 4:12:4
Answer: 1:3:1 -
5. Statistics
Find the range of: -4, -5, -15, 30, 32
Answer: 47