Keystones — Cornerstone
Five GCSE retrieval questions · 8 December 2022 · mathsvault.uk/keystones
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1. Number
Calculate: 307 + 889
Answer: 307 + 889 = 1196 -
2. Algebra
What is the next term? 5, 15, 45, 135, ...
Answer: 405 -
3. Geometry
Calculate the area of a circle with diameter 15cm
Answer: 176.71cm² -
4. Ratio
Simplify: 15:18:6
Answer: 5:6:2 -
5. Statistics
Calculate the mean of: 45, 34, 23, 38, 8, 30, 46, 6
Answer: 28.8