Keystones — Lintel
Five GCSE retrieval questions · 2 June 2024 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 123. What are the numbers?
Answer: 40, 41, and 42 -
2. Algebra
Factorise fully: 16x² + 28x
Answer: 4x(4x + 7) -
3. Geometry
Adjacent = 16cm, hypotenuse = 21cm. Find the angle
Answer: 40.4° -
4. Ratio
Simplify: 6:10:10
Answer: 3:5:5 -
5. Statistics
Calculate the mean of: 6, 43, 23, 23, 36, 30, 50, 22
Answer: 29.1