Keystones — Lintel
Five GCSE retrieval questions · 20 April 2021 · mathsvault.uk/keystones
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1. Number
What is ∛27?
Answer: 3 -
2. Algebra
Solve: 7x = 42
Answer: x = 6 -
3. Geometry
Find c if a = 16cm and b = 17cm in a right triangle
Answer: 23.3cm -
4. Ratio
Simplify the ratio 3m:300cm
Answer: 1:100 -
5. Statistics
Find the range of: 7, -22, -9, 41, 15
Answer: 63