Keystones — Cornerstone
Five GCSE retrieval questions · 20 January 2025 · mathsvault.uk/keystones
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1. Number
What is the missing number: 62 + ? = 187
Answer: 125 -
2. Algebra
Simplify: 3x + 2x
Answer: 5x -
3. Geometry
Calculate the perimeter of a right triangle with sides 11cm and 10cm
Answer: 35.9cm -
4. Ratio
Simplify: 20:12:20
Answer: 5:3:5 -
5. Statistics
Calculate the range of: 46, 27, 27, 34, 36, 59
Answer: 32