Keystones — Capstone
Five GCSE retrieval questions · 22 April 2025 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 105. What are the numbers?
Answer: 34, 35, and 36 -
2. Algebra
Find the next term: 1, 4, 10, 19, ...
Answer: 31 -
3. Geometry
A right triangle has hypotenuse 5cm and one side 3cm. Find its area
Answer: 6cm² -
4. Ratio
Calculate 44.8% of 880
Answer: 394.24 -
5. Statistics
The mean of 4 numbers is 39. If 3 of them are 33, 37, 17, what is the missing number?
Answer: 69