Keystones — Cornerstone
Five GCSE retrieval questions · 30 July 2021 · mathsvault.uk/keystones
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1. Number
Calculate: 3² × 5
Answer: 45 -
2. Algebra
Solve: x + 7 = 17
Answer: x = 10 -
3. Geometry
Find the area of a circle with radius 5cm
Answer: 78.54cm² -
4. Ratio
Simplify the ratio 32:20
Answer: 8:5 -
5. Statistics
Calculate the range of: 102, 48, 95, 35, 69, 72
Answer: 67