Keystones — Cornerstone
Five GCSE retrieval questions · 3 March 2023 · mathsvault.uk/keystones
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1. Number
Calculate: 85 + 86
Answer: 85 + 86 = 171 -
2. Algebra
Factorise: 14x + 16
Answer: 2(7x + 8) -
3. Geometry
Calculate the area of a circle with diameter 9cm
Answer: 63.62cm² -
4. Ratio
Simplify: 10:6:8
Answer: 5:3:4 -
5. Statistics
Find the mean of: 10, 20, 20
Answer: 16.666666666667