Keystones — Cornerstone
Five GCSE retrieval questions · 5 April 2021 · mathsvault.uk/keystones
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1. Number
Calculate: 53 + 98
Answer: 53 + 98 = 151 -
2. Algebra
Expand: 9(x + 3)
Answer: 9x + 27 -
3. Geometry
Calculate the hypotenuse when a = 5cm and b = 11cm
Answer: 12.08cm -
4. Ratio
Simplify: 18:18:12
Answer: 3:3:2 -
5. Statistics
Find the mean of: 17, 3, 11, 2, 18
Answer: 10.2