Keystones — Cornerstone
Five GCSE retrieval questions · 18 July 2021 · mathsvault.uk/keystones
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1. Number
What is the missing number: 35 + ? = 151
Answer: 116 -
2. Algebra
For y = x³, find y when x = 3
Answer: y = 27 -
3. Geometry
Find the area of a circle with radius 8cm
Answer: 201.06cm² -
4. Ratio
Simplify: 20:20:8
Answer: 5:5:2 -
5. Statistics
Calculate the mean of: 15, 31, 13, 16, 6, 29
Answer: 18.3