Keystones — Capstone
Five GCSE retrieval questions · 5 November 2021 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 147. What are the numbers?
Answer: 48, 49, and 50 -
2. Algebra
Factorise fully: 12x² + 14x
Answer: 2x(6x + 7) -
3. Geometry
Adjacent = 20cm, hypotenuse = 36cm. Find the angle
Answer: 56.3° -
4. Ratio
Calculate 25.7% of 962
Answer: 247.23 -
5. Statistics
The mean of 6 numbers is 20. If 5 of them are 18, 18, 40, 17, 27, what is the missing number?
Answer: 0