Keystones — Capstone
Five GCSE retrieval questions · 19 January 2022 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 135. What are the numbers?
Answer: 44, 45, and 46 -
2. Algebra
Factorise fully: 4x² + 14x
Answer: 2x(2x + 7) -
3. Geometry
Adjacent = 17cm, hypotenuse = 26cm. Find the angle
Answer: 49.2° -
4. Ratio
Calculate 43.2% of 917
Answer: 396.14 -
5. Statistics
The mean of 4 numbers is 27. If 3 of them are 22, 15, 29, what is the missing number?
Answer: 42