Keystones — Cornerstone
Five GCSE retrieval questions · 19 August 2023 · mathsvault.uk/keystones
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1. Number
Add: 23.39 + 22.89
Answer: 23.39 + 22.89 = 46.28 -
2. Algebra
Solve: 6x = 72
Answer: x = 12 -
3. Geometry
Find the area of a circle with radius 9cm
Answer: 254.47cm² -
4. Ratio
Calculate 50% of 72
Answer: 36 -
5. Statistics
Calculate the mean of: 28, 12, 15, 39, 34, 22, 9
Answer: 22.7