Keystones — Lintel
Five GCSE retrieval questions · 4 July 2023 · mathsvault.uk/keystones
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1. Number
What is the missing number: 37 + ? = 102
Answer: 65 -
2. Algebra
Solve: 2x = 26
Answer: x = 13 -
3. Geometry
Calculate the area of a circle with diameter 23cm
Answer: 415.48cm² -
4. Ratio
Simplify: 8:20:12
Answer: 2:5:3 -
5. Statistics
Calculate the mean of: 11, 21, 48, 35, 29, 36
Answer: 30