Keystones — Cornerstone
Five GCSE retrieval questions · 19 April 2022 · mathsvault.uk/keystones
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1. Number
What is the missing number: 85 + ? = 190
Answer: 105 -
2. Algebra
Solve: 9x = 90
Answer: x = 10 -
3. Geometry
Calculate the area of a circle with diameter 11cm
Answer: 95.03cm² -
4. Ratio
Simplify: 12:12:8
Answer: 3:3:2 -
5. Statistics
Calculate the mean of: 41, 49, 47, 5, 12, 33
Answer: 31.2