Keystones — Lintel
Five GCSE retrieval questions · 6 October 2023 · mathsvault.uk/keystones
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1. Number
What is the missing number: 93 + ? = 164
Answer: 71 -
2. Algebra
Factorise: 2x² + 8x
Answer: 2x(x + 4) -
3. Geometry
Adjacent = 26cm, hypotenuse = 34cm. Find the angle
Answer: 40.1° -
4. Ratio
Simplify: 12:24:12
Answer: 1:2:1 -
5. Statistics
Calculate the mean of: 19, 28, 49, 8, 10, 44, 5, 17
Answer: 22.5