Keystones — Cornerstone
Five GCSE retrieval questions · 6 January 2025 · mathsvault.uk/keystones
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1. Number
Calculate: 845 + 271
Answer: 845 + 271 = 1116 -
2. Algebra
Solve: 10x - 6 = 8x + 14
Answer: x = 10 -
3. Geometry
Find the hypotenuse of a right triangle with sides 8cm and 15cm
Answer: 17cm -
4. Ratio
Simplify the ratio 40:25
Answer: 8:5 -
5. Statistics
Find the range of: 20, 23, 16, 33, 29
Answer: 17