Keystones — Capstone
Five GCSE retrieval questions · 5 August 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: 4x² + 10x
Answer: 2x(2x + 5) -
3. Geometry
Adjacent = 25cm, hypotenuse = 43cm. Find the angle
Answer: 54.5° -
4. Ratio
Simplify the ratio 7m:700cm
Answer: 1:100 -
5. Statistics
The mean of 4 numbers is 24. If 3 of them are 28, 50, 25, what is the missing number?
Answer: -7