Keystones — Capstone
Five GCSE retrieval questions · 17 August 2022 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 129. What are the numbers?
Answer: 42, 43, and 44 -
2. Algebra
Simplify: 8x - 7x + 10y - 4y
Answer: x + 6y -
3. Geometry
Adjacent = 19cm, hypotenuse = 32cm. Find the angle
Answer: 53.6° -
4. Ratio
Simplify the ratio 2m:200cm
Answer: 1:100 -
5. Statistics
The mean of 5 numbers is 29. If 4 of them are 50, 49, 38, 34, what is the missing number?
Answer: -26