Keystones — Capstone
Five GCSE retrieval questions · 20 May 2022 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 111. What are the numbers?
Answer: 36, 37, and 38 -
2. Algebra
Simplify: 12x - 2x + 4y - 3y
Answer: 10x + y -
3. Geometry
Adjacent = 23cm, hypotenuse = 31cm. Find the angle
Answer: 42.1° -
4. Ratio
Simplify the ratio 2m:200cm
Answer: 1:100 -
5. Statistics
The mean of 5 numbers is 20. If 4 of them are 22, 15, 48, 21, what is the missing number?
Answer: -6