Keystones — Cornerstone
Five GCSE retrieval questions · 25 May 2022 · mathsvault.uk/keystones
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1. Number
Calculate: 37 + 90
Answer: 37 + 90 = 127 -
2. Algebra
Expand: 6(6x + 2)
Answer: 36x + 12 -
3. Geometry
Find the perimeter of a right triangle with sides 5cm and 12cm
Answer: 30cm -
4. Ratio
Simplify: 18:15:12
Answer: 6:5:4 -
5. Statistics
Find the mean of: 7, 9, 18, 6
Answer: 10