Keystones — Cornerstone
Five GCSE retrieval questions · 1 May 2024 · mathsvault.uk/keystones
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1. Number
What is the missing number: 46 + ? = 191
Answer: 145 -
2. Algebra
Solve: x + 8 = 18
Answer: x = 10 -
3. Geometry
Calculate the area of a circle with diameter 24cm
Answer: 452.39cm² -
4. Ratio
Simplify the ratio 30:25
Answer: 6:5 -
5. Statistics
Find the mean of: 11, 20, 14, 2, 10
Answer: 11.4