Keystones — Cornerstone
Five GCSE retrieval questions · 5 March 2025 · mathsvault.uk/keystones
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1. Number
Calculate: 62 + 67
Answer: 62 + 67 = 129 -
2. Algebra
Solve: x + 5 = 17
Answer: x = 12 -
3. Geometry
Find the perimeter of a right triangle with sides 6cm, 8cm, 10cm
Answer: 24cm -
4. Ratio
Simplify the ratio 32:12
Answer: 8:3 -
5. Statistics
Find the range of: 37, 22, 37, 27, 16
Answer: 21