Keystones — Cornerstone
Five GCSE retrieval questions · 15 December 2024 · mathsvault.uk/keystones
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1. Number
Find the total of 159, 121, and 131
Answer: 411 -
2. Algebra
Factorise: 20x + 10
Answer: 5(4x + 2) -
3. Geometry
Calculate the hypotenuse when a = 4cm and b = 7cm
Answer: 8.06cm -
4. Ratio
Calculate 10% of 183
Answer: 18.3 -
5. Statistics
Find the mean of: 20, 6, 19, 4, 2
Answer: 10.2