Keystones — Cornerstone
Five GCSE retrieval questions · 19 March 2023 · mathsvault.uk/keystones
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1. Number
What is the missing number: 67 + ? = 120
Answer: 53 -
2. Algebra
Solve: x + 12 = 26
Answer: x = 14 -
3. Geometry
Calculate the area of a circle with diameter 17cm
Answer: 226.98cm² -
4. Ratio
Simplify: 12:20:16
Answer: 3:5:4 -
5. Statistics
Find the mean of: 18, 20, 13, 7
Answer: 14.5