Keystones — Lintel
Five GCSE retrieval questions · 12 November 2023 · mathsvault.uk/keystones
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1. Number
What is the missing number: 47 + ? = 194
Answer: 147 -
2. Algebra
Factorise: 4x² + 2x
Answer: 2x(2x + 1) -
3. Geometry
Opposite = 18cm, adjacent = 16cm. Calculate the angle
Answer: 48.4° -
4. Ratio
Simplify the ratio 5m:500cm
Answer: 1:100 -
5. Statistics
Find the range of: 18, -6, -11, 31, -6
Answer: 42