Keystones — Cornerstone
Five GCSE retrieval questions · 7 March 2023 · mathsvault.uk/keystones
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1. Number
What is the missing number: 51 + ? = 110
Answer: 59 -
2. Algebra
Find the next term: 12, 15, 18, 21, ...
Answer: 24 -
3. Geometry
Find the area of a circle with radius 9cm
Answer: 254.47cm² -
4. Ratio
Simplify the ratio 8:32
Answer: 1:4 -
5. Statistics
Calculate the mean of: 37, 5, 24, 28, 14, 10, 26, 20
Answer: 20.5