Keystones — Cornerstone
Five GCSE retrieval questions · 3 May 2022 · mathsvault.uk/keystones
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1. Number
Calculate: 47 + 77
Answer: 47 + 77 = 124 -
2. Algebra
Find the next term: 25, 29, 33, 37, ...
Answer: 41 -
3. Geometry
Calculate the area of a right triangle with perpendicular sides 12cm and 6cm
Answer: 36cm² -
4. Ratio
Simplify the ratio 16:4
Answer: 4:1 -
5. Statistics
Calculate the mean of: 22, 8, 17, 9, 5, 14, 39
Answer: 16.3