Keystones — Cornerstone
Five GCSE retrieval questions · 2 March 2025 · mathsvault.uk/keystones
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1. Number
Calculate: 42 + 20
Answer: 42 + 20 = 62 -
2. Algebra
Solve: x + 12 = 29
Answer: x = 17 -
3. Geometry
Find the hypotenuse of a right triangle with sides 3cm and 4cm
Answer: 5cm -
4. Ratio
Simplify: 10:6:12
Answer: 5:3:6 -
5. Statistics
Calculate the range of: 62, 58, 35, 30, 56, 104
Answer: 74