Keystones — Capstone
Five GCSE retrieval questions · 21 August 2022 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 147. What are the numbers?
Answer: 48, 49, and 50 -
2. Algebra
Simplify: 10x - 7x + 3y - y
Answer: 3x + 2y -
3. Geometry
Adjacent = 27cm, hypotenuse = 45cm. Find the angle
Answer: 53.1° -
4. Ratio
Simplify the ratio 7m:700cm
Answer: 1:100 -
5. Statistics
The mean of 4 numbers is 39. If 3 of them are 47, 48, 50, what is the missing number?
Answer: 11