Keystones — Cornerstone
Five GCSE retrieval questions · 5 June 2026 · mathsvault.uk/keystones
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1. Number
Calculate: 96 + 77
Answer: 96 + 77 = 173 -
2. Algebra
Factorise: 15x + 15
Answer: 5(3x + 3) -
3. Geometry
Find the hypotenuse of a right triangle with sides 3cm and 4cm
Answer: 5cm -
4. Ratio
Find 75% of 105
Answer: 78.75 -
5. Statistics
Find the range of: 25, 19, 19, 22, 29
Answer: 10