Keystones — Cornerstone
Five GCSE retrieval questions · 7 May 2025 · mathsvault.uk/keystones
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1. Number
Find the total of 170, 276, and 141
Answer: 587 -
2. Algebra
Solve: 6x = 90
Answer: x = 15 -
3. Geometry
Find the hypotenuse of a right triangle with sides 3cm and 4cm
Answer: 5cm -
4. Ratio
Find 41% of 375
Answer: 153.75 -
5. Statistics
Find the mean of: 5, 12, 2, 10, 19
Answer: 9.6