Keystones — Cornerstone
Five GCSE retrieval questions · 8 October 2023 · mathsvault.uk/keystones
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1. Number
Calculate: 23 + 41
Answer: 23 + 41 = 64 -
2. Algebra
Expand: 4(x + 6)
Answer: 4x + 24 -
3. Geometry
Find the area of a circle with radius 8cm
Answer: 201.06cm² -
4. Ratio
Simplify: 12:8:16
Answer: 3:2:4 -
5. Statistics
Calculate the mean of: 23, 44, 13, 33, 29, 7
Answer: 24.8