Keystones — Cornerstone
Five GCSE retrieval questions · 13 August 2024 · mathsvault.uk/keystones
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1. Number
What is the missing number: 76 + ? = 121
Answer: 45 -
2. Algebra
Factorise: 3x² + 8x
Answer: x(3x + 8) -
3. Geometry
Find the area of a circle with radius 8cm
Answer: 201.06cm² -
4. Ratio
Simplify: 24:20:8
Answer: 6:5:2 -
5. Statistics
Calculate the range of: 70, 83, 85, 85, 44, 68
Answer: 41