Keystones — Cornerstone
Five GCSE retrieval questions · 9 September 2023 · mathsvault.uk/keystones
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1. Number
Calculate: 49 + 54
Answer: 49 + 54 = 103 -
2. Algebra
Solve: 9x = 135
Answer: x = 15 -
3. Geometry
Find the area of a circle with radius 7cm
Answer: 153.94cm² -
4. Ratio
Calculate 50% of 178
Answer: 89 -
5. Statistics
Calculate the mean of: 49, 42, 26, 43, 13, 23, 10
Answer: 29.4