Keystones — Capstone
Five GCSE retrieval questions · 11 January 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
Simplify: 9x - 3x + 7y - y
Answer: 6x + 6y -
3. Geometry
Adjacent = 19cm, hypotenuse = 38cm. Find the angle
Answer: 60° -
4. Ratio
Simplify the ratio 2m:200cm
Answer: 1:100 -
5. Statistics
The mean of 4 numbers is 33. If 3 of them are 22, 46, 45, what is the missing number?
Answer: 19