Keystones — Cornerstone
Five GCSE retrieval questions · 14 August 2024 · mathsvault.uk/keystones
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1. Number
Calculate: 5 + (3) + (4)
Answer: 12 -
2. Algebra
Solve: 8x = 56
Answer: x = 7 -
3. Geometry
Find the hypotenuse of a right triangle with sides 8cm and 15cm
Answer: 17cm -
4. Ratio
Simplify the ratio 15:21
Answer: 5:7 -
5. Statistics
Find the range of: 22, 24, 31, 19, 19
Answer: 12