Keystones — Capstone
Five GCSE retrieval questions · 18 December 2023 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 141. What are the numbers?
Answer: 46, 47, and 48 -
2. Algebra
Factorise fully: 14x² + 6x
Answer: 2x(7x + 3) -
3. Geometry
Adjacent = 27cm, hypotenuse = 39cm. Find the angle
Answer: 46.2° -
4. Ratio
Calculate 12.9% of 528
Answer: 68.11 -
5. Statistics
The mean of 5 numbers is 22. If 4 of them are 37, 42, 42, 16, what is the missing number?
Answer: -27