Keystones — Capstone
Five GCSE retrieval questions · 5 December 2024 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 93. What are the numbers?
Answer: 30, 31, and 32 -
2. Algebra
Factorise fully: 20x² + 20x
Answer: 4x(5x + 5) -
3. Geometry
Adjacent = 30cm, hypotenuse = 46cm. Find the angle
Answer: 49.3° -
4. Ratio
Calculate 11.4% of 676
Answer: 77.06 -
5. Statistics
The mean of 4 numbers is 26. If 3 of them are 24, 42, 27, what is the missing number?
Answer: 11