Keystones — Capstone
Five GCSE retrieval questions · 19 September 2023 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 123. What are the numbers?
Answer: 40, 41, and 42 -
2. Algebra
Simplify: 10x - 4x + 9y - 6y
Answer: 6x + 3y -
3. Geometry
Adjacent = 19cm, hypotenuse = 25cm. Find the angle
Answer: 40.5° -
4. Ratio
Simplify the ratio 8m:800cm
Answer: 1:100 -
5. Statistics
The mean of 6 numbers is 24. If 5 of them are 33, 48, 27, 39, 31, what is the missing number?
Answer: -34