Keystones — Cornerstone
Five GCSE retrieval questions · 16 May 2023 · mathsvault.uk/keystones
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1. Number
Calculate: 72 + 41
Answer: 72 + 41 = 113 -
2. Algebra
Find the next term: 15, 20, 25, 30, ...
Answer: 35 -
3. Geometry
Calculate the area of a right triangle with perpendicular sides 10cm and 10cm
Answer: 50cm² -
4. Ratio
Simplify the ratio 30:20
Answer: 3:2 -
5. Statistics
Calculate the mean of: 39, 35, 49, 27, 15, 46, 38
Answer: 35.6