Keystones — Cornerstone
Five GCSE retrieval questions · 21 July 2024 · mathsvault.uk/keystones
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1. Number
Calculate: 25 + 25
Answer: 25 + 25 = 50 -
2. Algebra
Solve: 4x = 52
Answer: x = 13 -
3. Geometry
Find the hypotenuse of a right triangle with sides 3cm and 4cm
Answer: 5cm -
4. Ratio
Calculate 25% of 27
Answer: 6.75 -
5. Statistics
Calculate the mean of: 36, 17, 7, 46, 50, 19
Answer: 29.2