Keystones — Capstone
Five GCSE retrieval questions · 9 February 2022 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 141. What are the numbers?
Answer: 46, 47, and 48 -
2. Algebra
Simplify: 10x - 5x + 9y - 3y
Answer: 5x + 6y -
3. Geometry
Adjacent = 21cm, hypotenuse = 38cm. Find the angle
Answer: 56.5° -
4. Ratio
Simplify the ratio 2m:200cm
Answer: 1:100 -
5. Statistics
The mean of 6 numbers is 32. If 5 of them are 17, 47, 32, 48, 18, what is the missing number?
Answer: 30