Keystones — Cornerstone
Five GCSE retrieval questions · 18 February 2025 · mathsvault.uk/keystones
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1. Number
Find the total of 214, 227, and 57
Answer: 498 -
2. Algebra
Solve: 6x = 78
Answer: x = 13 -
3. Geometry
Find the hypotenuse of a right triangle with sides 6cm and 8cm
Answer: 10cm -
4. Ratio
Simplify the ratio 35:20
Answer: 7:4 -
5. Statistics
Calculate the range of: 25, 27, 22, 49, 39, 53
Answer: 31