Keystones — Cornerstone
Five GCSE retrieval questions · 17 November 2021 · mathsvault.uk/keystones
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1. Number
What is the missing number: 91 + ? = 176
Answer: 85 -
2. Algebra
Solve: x + 15 = 31
Answer: x = 16 -
3. Geometry
Calculate the area of a circle with diameter 13cm
Answer: 132.73cm² -
4. Ratio
Simplify the ratio 14:8
Answer: 7:4 -
5. Statistics
Find the range of: 5, 20, 17, 6, 19
Answer: 15