Keystones — Capstone
Five GCSE retrieval questions · 9 May 2025 · 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
Simplify: 12x - 6x + 10y - 3y
Answer: 6x + 7y -
3. Geometry
Adjacent = 30cm, hypotenuse = 47cm. Find the angle
Answer: 50.3° -
4. Ratio
Simplify the ratio 2m:200cm
Answer: 1:100 -
5. Statistics
The mean of 4 numbers is 32. If 3 of them are 31, 19, 35, what is the missing number?
Answer: 43